Toyota prius 12v battery drain. Park it where you are going to work on it and shut it down.

Toyota prius 12v battery drain I got a new Prius Plug-in 2012 and when the cold weather came this winter, which isn't that cold at 40F, the 12v battery seems to get discharged very often. One the Prius, and all Toyota hybrids, the DC-DC converter charges the battery and powers the 12V > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > 2008 hybrid battery drains overnight I've already replaced my Aux 12v battery that had The small 12V battery is a different matter, if you are in the Accessory mode or the ON mode you can definitely run that down to the point the car won't go to the Ready mode. 25 amps) Have you ever drained your Prius Prime 12V battery from non-usage rather than battery failure? #2 Salamander_King, Dec 28, 2020. The BCPS is powered directly from the 15 amp ABS Kecamatan Pontianak Tenggara 78124, Kota Pontianak - Daftar Kode POS, hal 1. i left the fuse out whilst i went to work and when i came back the car would start again, bingo, source of Car Batteries in Toyota Prius are also used to provide electrical energy to several components and to regulate voltage which is crucial for the efficiency of the car's engine. Then the same thing is happening. Some cross-reference . This week, I must have jumpstarted the car twice already. Search Forums; Featured Threads; Recent Posts; Constant battery drain problem Join Toyota Owners Club Also on that car, the 12v battery is fitted alongside the traction battery, but it is logically and physically (just) seperate, and its chemistry is slightly different to the My 2006, with original 12V battery, finally failed to start. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by mscholtz, Mar 7, 2022. Toyota True Start Prius batteries (along w/ Bosch and Exide) use AGM batteries in a traditional plate design. My Neighbor drives his car once a month and buys new Battery every 2 years, so does my dad in his vw even though he drives daily but ultra low miles with a lot of stop start involved. What you do want to find is what's keeping the car draining the battery all the time as a way to hook your voltmeter up across the terminals and so on and see My failing 6-year-old 12v battery can store only 2Ah, which was merely enough to crank up my engine several times. 9v. Especially now that East Penn is making them, this size is available in many U. Don't give away those jumper cables. When the 12V battery fails, the > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > Attachments are working again! Check out this thread for more details and to report any other bugs. The battery worked for a couple weeks and then it drained again. It showed me 14 V in ready condition. , including a better 12v I also use a CTEK once a week just to ensure the Battery is well maintained. an 8kWh battery pack in the back and the stupid f-ing car doesn't start because of > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! I am pretty sure there was something out of the ordinary where excessive current drainage took my 12v battery to zero. I'm able to drive the car for 3-4 In this video I demonstrate how to test the 12v battery in a 2010 Toyota Prius. Again I changed with a new Toyota TrueStart actual Prius battery. 4 hours is not enough. Like most cars, the 12 battery in a Prius lasts about 4 years. edthefox5 Senior Member. It’s just not as bad. Joined: Mar 6, 2013 3 0 0 > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > Generation 1 Prius Discussion > Attachments are working again! Check out this thread for more details and to report any other bugs. I think this extra charge, charging the battery to 13. If you accidentally drain your 12v battery, the car will give you all kinds of errors, lock up the parking break and throw you a persistent check engine/visit your dealer light! Luckily, I took it to autozone (US) for a diagnostic through OBD and that cleared it up. The Prius 12v is not a starting So last week I accidentally left my 2005 Toyota Prius on (not running) for over 8 hours. No Ready light issues since the first startup after the 12v install. I have K reg yaris hybrid I bought from registered Toyota dealer - Toyota approved Garage attached. S. Everything Toyota Prius! Currently private to support the proposed changes We mostly use our 2010 Prius for short trips, and during very cold and/or snowy weather, it may sit in the garage for up to a week or two at a time. The AA man said he thought Greetings and welcome to Prius Geekery! Because the 12v in a Prius doesn't power the engine starter and the HV Battery does, the criminals who bought Optima and moved the There is a relay that engages the hybrid battery only when the "ready" light is on, other times it is disconnected. I have a 5 year old 12v battery in a Gen 2 2008 Prius with smart key. This means that you have the auxiliary battery to thank for powering your car's heaters, headlights, radio, power windows, and other electronics. which will lead to failure of the 12V battery, b/c it will get drained. They Forums. Prius 12 V Battery Drain. If not then the car is the cause, if yes there is a short in the fob draining the battery and the car has nothing to do with it. 6v With my old 2008 Prius hybrid the 12V Battery was a problem. Some after market devices installation could increase the phantom load draining the 12V battery. The 12v battery keeps dying. If it is draining while your Prius isn’t running, something is drawing current that shouldn’t The battery drain during start can be minimized by turning the climate control to the "off" position. “I just had a problem with the 12V The easy thing to do is take the 12v battery to an auto supply and have them load test it for free. This made me think the Prime did not charge the 12v battery during a charge of the traction battery. It would be better to charge the battery overnight, then look at the battery voltage after the battery has rested another day to dissipate surface charge. This is NOT the hybrid battery, I will going over that in a different video As the title suggests, I was wondering if anyone knows the proper voltage for a Prius 12v battery. EDIT: If your Prius has SKS, you really need to get a 12V battery from Toyota or the Bosch/Exide. If the car sits for a few weeks it could drain the 12v battery. When the Prime was in READY, the 12v battery read 13. The Prius Four has a built-in wireless charger at the tray bellow the center console, I instructed my wife to be extremely mindful to not turn that on accidentally. The battery must have been dead because before I replaced it, the car power locks would not work and the lights wouldn't turn on; The problem with load testing, at chain auto parts stores, is the 50A, 60A, 100A, or 150A load put on 12V batteries, is intended to test for batteries that CRANK a traditional engine with a starter. Simple fact of the matter is that in the 2011 Nissan Leaf, if either of the following two conditions are not met, your 12V Battery's CCA's and overall My car 2010 prius battery dies in 30 min after full charge. The health check was done the morning after the new 12v battery was installed. To show Toyota to avoid all drains from the 12 volt battery, when car is idle. , including a better 12v > Gen 4 (2016 to 2022) Toyota Prius Forums > Gen 4 Prius Care, Maintenance and Troubleshooting > Attachments are working again! Check out this thread for more details and Greg, given that you have a 2024 Prius Prime XSE, your parasitic 12V battery drain seems like a warranty issue that Toyota should take care of. 12v battery charging in situ. Though sometimes it is just one, This year, I’ve decided to figure out how to keep my 12V battery charged enough to start the car. This is a Toyota wide issue for None of the lights (interior and exterior) are working. Discussion in 'Gen 2 Prius Main Forum' started by mrspower, Jun 16, 2014. #2 fotomoto, Dec 6 Since Background: 2016 Prius two with 40,000 miles recently purchased a couple months ago. I have replaced the car battery a week ago, but the issue isn't fixed. 3-12. 12v battery is dead. The Toyota Prius’s That's right—~ 30–40% is the general industry recommendation for lithium-battery storage. It does not start the ICE. 45 plus tax for the cost of the battery, plus labor, which is billed at $95 an hour. mrspower New Member. Not really, most batteries in most cars last about 4 years, 12v Prius batteries last about 4 years. Scott I have come to expect 5-7 years before replacing 12v on a Toyota Hybrid or Plug-in . Somehow the 12 V battery is not getting charged in the car. You need to purchase > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Technical Discussion > Attachments are working again! Check out this thread for more details and to report any other The old battery was only 11 months old. Some have said that there is just a small current Of course, that won't change Toyota's brilliant design work that permits your experience to happen, irrespective of the impacts of the recall (e. The Toyota Prius’s status as the pioneer that paved the way for today Are you sure? With my Prime off, the 12v battery read 12. I chalk it up to the EV system putting more strain on the 12v battery so it On the 2004+ Prius, the hybrid traction battery will also power the AC compressor (if you have the front windshield defroster on or the AC on). The 12v battery has started to occasionally die. If its showing the red triangle light, its likely a or some weak cells. However a Get the latest weather forecast in Pontianak, West Kalimantan, Indonesia for today, tomorrow, long range weather and the next 14 days, with accurate temperature, feels like and humidity Either follow Toyota's advice and either: 1. you can not add the water to Toyota 12v battery. > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > Attachments are working again! And it would be nice if if someone could come up with a reliable > Gen 4 (2016 to 2022) Toyota Prius Forums > Gen 4 Prius Care, Maintenance and Troubleshooting > 12v battery maintenance when Prius is not driven for several days. The 12V Battery died on my last Gen 4 Prius when the car was about 18 months old, Since the battery drain wasn't fully understood in the very early days, the 12V battery No luck, battery drained. Also For 2012–2017 Toyota Prius C (New Battery): $1,895 Slightly lower cost for older models but comes with the same 36-month warranty and improved performance. Draining a 12v battery once and leaving it will often kill it completely, or at the least it will make its capacity much lower. If the car isn’t used for about 24 hours we’re unable to Constant battery drain problem Join Toyota Owners Club Also on that car, the 12v battery is fitted alongside the traction battery, but it is logically and physically (just) This is from a Toyota training manual regarding the 12V maintenance free battery: “This battery is very sensitive to high-voltage. 2012 Prius v (wagon) (mother) 2008 Prius Gen II (long gone) I recall a lot of threads about drained 12v batteries on the hybrid forum, and I > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > Attachments are working again! Check out this thread for more details and to report any other bugs. CCA of 12V OEM battery. and Canadian auto parts stores at reasonable prices. Optima's spiral design is inefficient; there are gaps between the 6 spirals, that are not used, thus the lower Amp-hr capacity. The tech lifted the cover off the massively complicated fuse box, grounded the battery pack cable inside the Why does my car battery keep dying? If I don't start the car within 24H it will fail me the next day. the prius is quite happy to supply however much current at 14. Took it to It sounds like your car is experiencing a parasitic drain on the 12V/AGM battery, which is causing it to lose its charge and preventing the car from starting after a few days of Can you "jump start" a Prius with a bad 12 volt battery? Yes via a power point under the hood or by connecting directly to the battery. Rudyard · Started 1 hour ago. Not necessarily over one, single night. View attachment 190170 If your 12v battery is healthy, once a week drive for ~1hour is enough to keep the 12v battery charged. I do this in the garage so the bonnet is left up but I lock the car. Then the red triangle of death returned. #20 It has several charging modes for 12V and 6V batteries, but I have mine set to 12V motorcycle Battery mode, given that the Auris hybrid's 12V battery is a lower capacity battery more akin to one used on motorcycles. The Toyota dealer wanted $213. One inverter is the same as on a regular Prius. The fuse I pulled on Sunday brought the current draw back to normal. Mysterious 12V battery drain. With the car running, my voltmeter shows that my 12v battery is draining about . I checked all the fuses with a multimeter. The downside of the latter is you will loose stuff About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The 12V battery charges constantly when the car is in Ready mode, no matter what was selected with the gear selector. Once powered up, all power comes from the traction battery, which also supplies the 12v power where needed. If you never fully discharge it, it will last a long time. Check it out and let us know #7 TMR-JWAP, Dec 16, 2019. a Prius left undriven long enough will have a dead 12v accessory battery. By jgodfrey, April 20, 2015 in Prius Club Share The garage replaced the 12v battery under warranty as it failed their tests; might have been a duff battery from the outset, but undoubtedly the 4 times it went flat will have finished it off. The car won't start even using jumper cable. After servicing my 2019 Prius, the Toyota dealer said the 4 1/2 year old 12V auxiliary battery needs replacement, quoting $336 for replacement. But the camera, if always on, could have been draining the battery previously so that by the time you pulled the camera the damage had already been done. There have been some reports of batteries depleted so badly that even a charge won't restore the 12v to reliable service. It's a chemical process called sulfation which happens when it's low on charge or completely dead. I am wondering if there is another issue with the car and charging the 12V battery that I could fix. There are still some parasitic loads (such as powering things like your radio memory), besides any lights you may have left on. Replaced after 66,624 miles. The next day by mid The primary issue: the battery is draining over night. If you charge the 12v you "should" be ok. The car was driven for 1. But from what I have checked during the undriven period, as long as I drive more than 1 hour/week, the 12v stays reasonably charged and will last OK length. 12V battery is dead! Because the car kept vibrating when I was vacuuming. Make sure there is no light left on and you don't hear pumps running after the car has been shut off. This is probably Some 2023 – 2024 model year Prius Prime vehicles may exhibit a condition where the 12V auxiliary battery charge may deplete due to the plug-in charge control ECU not The portable battery jump start accessory will almost always provide a means of getting going again. Toyota knows this is an issue and provides an OFF button on the lower dash underneath the steering wheel. Still under warranty Its not left for long periods and new Batter > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Technical Discussion > Attachments are working again! is it more of a drain on the DC/DC converter 12v buss and keeping the gasoline motor going more that can affect the mpg? OR why does the 12v battery affect the mpg? The Prius just doesn't charge the 12V battery as rapidly as an The much larger traction battery actually starts up the engine when needed. Page 710 says the 12-volt battery will also discharge after an unspecified “long time. The auxiliary battery is a conventional 12V battery that provides power for the Prius' electrical systems. I've heard that anything above 12 volts is pretty solid. Once the car Battery goes flat it looses its The best troubleshooting method to find a battery drain is to install a battery disconnect switch (sample link below). If the car is on it will charge the 12v battery from the high voltage system regardless if the 39;09 Prius 12v battery has an intermittent "mystery drain" we have lived with for 2 years and several poor diagnoses and 3 battery replacements. The Prius 12v battery doesn't even start the car. Things that shorten 12v battery life are: Full discharges - a small number of full discharges will destroy most lead acid batteries. It was designed to kill the headlights after the car is powered down and the drivers door is opened. I changed the battery twice, with the last one installed in a few weeks ago, and since then the After noticing rapid power drains in my original 8 year old 12v battery (with AC running and the Prius just idling it would drain from green to black in just a few minutes) I Only time will tell if this isn't Toyota actually being smart and learning from their competitors mistakes,as the (Gen 1) Chevrolet Volt,which is basically the exact concept as the 2023, Prius have 2008 Prius. Search Forums; I'd look into a battery cut-off switch, to stop the steady drain any 12 volt battery experiences, in a modern car. I just brought it to an auto shop and they are stumped. About 3 quarts of water. i do not drive Prius auto-off is a stop gap feature to help protect the 12v battery. Somethings draining the Battery when the car is parked. It is from the 2020 manual, so the page referring may be different for your model's manual. If the battery truly is draining at 1. The Toyota Prius’s status as > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Technical Discussion > Attachments are working again! Check out this thread for more details and to These capacitors have been known to go bad and start draining the 12v battery. > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > 2007 Prius battery draining. I think it is advisable to always lock It became an issue after about 3. Is the 12V/45 Ah battery this The eCall system to make sure that it switches off when it should so that it does unnecessarily drain the 12v auxiliary battery. Thinking my battery was bad, a couple of weeks ago I replaced it with one of those Optima If not, it could be the SKS draining it. They couldn’t find anything wrong Post your claim of replacing the battery every four years and the laughs and bashing will follow. Everything Toyota Prius! Currently private to support the proposed changes to third party apps. The Toyota Prius’s status as the pioneer that paved the way for today’s electrified vehicle market has been Greg, given that you have a 2024 Prius Prime XSE, your parasitic 12V battery drain seems like a warranty issue that Toyota should take care of. This will get you going again but it is I've had it to the dealer twice, and both times they said the battery is OK. Top result from google? That is for a regular car with a regular starting battery. > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care Check out this thread for more details and to report any other bugs. Two common causes of the 12v battery draining overnight are the capacitor backup for the brake system and the driver door courtesy lamp. If you want to "jump start" the car and it's trapped in the garage, even a smaller gauge wire is sufficient. Daftar Provinsi / Kota / Kabupaten dan Kecamatan / Distrik serta Desa / Kelurahan di Indonesia, Bangka Hi!Pontianak - Sebagai ibu kota Kalimantan Barat, Kota Pontianak memiliki beberapa kecamatan dan kelurahan. Discussion in 'Gen 2 Prius Care, Maintenance and indicate the potential of the battery to survive adverse conditions, partial drain and so on. It first happened during a recent cold snap. It could be a few days of non-use, or a week. All three of these are 45Amp-hr batteries; these were supplied w/ the car originally. disconnect the 12v battery if not driven for 10+ days (on the 2004+, disconnect the jump point wiring harness), or make sure that Yes, you need to replace the 12v battery, but this will not keep the warning lights from coming back on until you determine what the problem is and fix it. Still randomly discharges the > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! Check out this thread for more details and Emigrated from the UK about 18 months ago with our RAV4 and have recently had problems with the 12v Battery draining. Once the car settles and 12v battery gets charged the engine will start/stop less frequently. Save Share A forum community dedicated to Toyota Prius Hybrid owners and enthusiasts. Tags: battery; Page 2 of 2 < Prev 1 2. 3 1 AlJ. In my 2004 Prius the battery was still functional at 200,000 miles and 8 years when I finally replaced it with an Optima Yellow Top (20,000 miles ago). 1) The symptoms of a dying Prius battery are different than normal. They acknowledged a large parasitic drain, but admitted there was nothing they could do about it. This can be a frustrating problem, but Master light and check engine light turn on. In this article, we will delve into the steps Next, the 12v battery's main reason for existence is to reduce unnecessary drain on the HV battery. When the engine kicks on it almost feels like the car is still in drive but being held in place by the parking pin and the brake, but it's otherwise still trying to In the Owner’s Manual (PDF), on page 80, Toyota advises to “drive the vehicle at least once every few months for at least 30 minutes or 10 miles (16 km),” to keep the hybrid battery charged. While charging, my 12v battery read 12. All drain holes have rubber covers so removed The 12V Battery died on my last Gen 4 Prius when the car was about 18 months old, Since the battery drain wasn't fully understood in the very early days, the 12V battery There has been a lot of speculation about the current drain on the auxiliary 12 volt lead acid battery in the Prius during "start". Once the battery drains once, it Some 2023 – 2024 model year Prius Prime vehicles may exhibit a condition where the 12V auxiliary battery charge may deplete due to the plug-in charge control ECU not The 12v battery is charged by one of two inverters. It's a Toyota Prius 08 Gen 2. When I had battery issues previously, I checked the 12V and the battery was corroded, so I purchased a new one from AutoZone. 8L MFI HEV DOHC 4cyl. Remember to turn off the radio and heater/AC to reduce the drain on the Battery. As the 12V battery voltage rises, current drops. I left it overnight and made sure all lights etc were off. The statement that a Prius should not be left idle for 6 days is just BS by a service department that doesn't want to be bothered with a problem they don't understand. 2017 Prius Prime, Blue Magnetism (wife) 2013 Prius PiP (gen1 PHEV) (son). Faktor risiko Kejadian Stunting adalah Agent (Asupan Protein, I wonder if this will result in more battery drain due to more sensors. Anyway, the last occurrence happened after I plugged in early evening to get an overnight charge which did not happen. If you take good care of the little 12v battery, it can last a long time. " The Today I show you exactly how to replace the battery for a 2012–2017 Toyota Prius. Since only a year has passed, I don't feel like my problem should be related to the 12V battery since it was just recently changed and I've barely been driving due to Over the weekend (48hrs) remove the car battery (+) lead and see if the fob battery dies again. The replacement batteries for Prius are not widely stocked except at > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! Check out this thread for more details and After a 300 mile journey, my 12v Battery charge reduced from 100% to 25%. After not driving my car for 3 weeks, my 12v Battery charge reduced from 100% to 50% (or less). It will not always detect a weak battery that does not allow you to park you car for long before it is drained down by the security system. 75 hrs about two weeks prior. The rather odd "too long in EV mode in the cold" issue. Posted April the engine will start 2 or 3 times running for about 3 minutes each time to top up the HV battery which is charging the 12v battery. The table refers to an “Auxiliary Battery Low Voltage” troubleshooting procedure, which in turn refers to a more detailed on-vehicle inspection procedure for the [FONT=arial, helvetica] Prius battery test procedure for 2004 to 2010 Prius Cars Here is a battery test you can perform on a Prius battery that is easy to do. but the actual Yuasa battery from Toyota seems to be only 200mm long at the top, not 207mm. However, the Prius also relies on a conventional 12V battery for essential functions like powering the electronics, starting the engine, and more. I suggest you put the 12v on a low amp charger or better a battery tender/maintainer if you leave the car undriven for an extended period. At 160K, toyota dealer checked 12v battery levels and did not find problem. Lets see how the new battery holds up after a while with the camera hooked up. I am a strong proponent of always locking your Prius' doors when you park it (even if it is in your locked garage at home). The "aux battery low" message in your Toyota Prius means that the auxiliary battery has I replaced my original Denso 12V battery on my 2008 Prius (09/07 build, 11/07 purchase) in October of 2012. I got a quick (nearly instant) jumpstart from a friend and drove around for about 30 minutes, which charged the Hybrid battery to just over half. I'm not aware of anything I've left on that could be I have noticed that this Toyota/Yaris (and other models) Battery Drain is not uncommon, and provided the alternator is working effectively and the existing Battery is not at end of life, remains thus far, explained by any official body. The 12V allows small trickle drainage to keep the memory of you radio, MPG, and other systems including the door sensors for SKS active. As the title suggests, I was wondering if anyone knows the proper voltage for a Prius 12v battery. Thread starter #1 This is an EV Life word to the wise that hopefully someone waaaay smarter than me has figured out. I discovered that the negative post was bent and cracked from the dealer installation. Joined We mostly use our 2010 Prius for short trips, and during very cold and/or snowy weather, it may sit in the garage for up to a week or two at a time. > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > '07-12V Battery Removal/Inst Instructions. I did not have to change the OEM 12v battery on the 2017 PP after 2. It cost me £118 to get the AA to jump start it in my garage. Secara administratif Kota Pontianak memiliki 6 It would be a great vehicle if they could fix these drainage issues but sadly this vehicle is unreliable and can leave you stranded! Unfortunately 12v drain is directky affected ABSTRAKWilayah Kecamatan Pontianak Tenggara kejadian Stunting pada Balita sebesar 302 Kasus (25,1 %). If you do the DISPLAY check while in READY mode you will be seeing the voltage supplied by the hybrid battery to recharge the 12v. When cable is reconnected capacitors will be charged in fraction of a second creating a spark. I then unplugged the big white positive plug on the Well I don't want to find my vehicle 12V battery drain. The battery tester used in this video I received at a discounted cost to revi To show Toyota to avoid all drains from the 12 volt battery, when car is idle. The 12v battery seems to get drained when I park outside in the (not so) cold, or when I park underground for hours. While waiting for a tow, the Yes, short distance and infrequent usage patterns are not good for the 12 volt Battery. (and make sure you actually turn it completely off, because I have seen cars left on (but not in READY mode) overnight, draining the 12v battery The expected life of our 12v batteries id dependent on how they are treated. The Toyota Prius’s status as the pioneer that paved the way for today’s electrified vehicle market has been recognised with a lifetime achievement award > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Technical Discussion > Attachments are That small current draw will drain those capacitors in minutes when battery has been disconnected. Again, no The 12v battery in my 2007 Toyota Prius keeps dying. Leaving the car in Ready mode will help. The HV > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > 2008 hybrid battery drains overnight I've already replaced my Aux 12v battery that had The 4th gen prime also has parasitic drain issues. If your prius has a smart key function (the doors unlock without pushing a Leaving any conventional 12v Battery in a heavily discharged state for any length of time will shorten its life massively - the Battery is better suited to working in the upper end of I am still using the original 12v battery in my 2004 Prius (4+ years and 127,000 miles). and I am careful to avoid battery draining situations - I almost always lock it in the garage to let the car remind me if I left anything on. I just replaced the aux 12v battery (was 5 months old) under warranty. After driving it around for 30 mins the voltage (measured at the front jump point) was just over 12 V. Once you've killed the 12v battery, it never quite recovers again. In that case, you have to realize that this is not a Toyota Prius Prime problem, it happens to literally every make and model of car. My 2004 Prius is at 172,000 miles and still has the original 12v (and traction) battery. R-P likes this. 58VDC) and then put a new battery in the second fob and waited an hour or two. It was stone dead. Unlike most cars the starter does not make slow grindy noises in a Prius which may be the normal way you tell if a 12 volt battery is low. I am getting to grips with it now and I am trying to work out if it is my fault or a design fault on Toyota’s part. The yellow top Optima is 38Amp-hr, and would be fine for a non-SKS Prius, b/c there isn't the continuous drain of the SKS system look/waiting for the fob to come At this time, I have a reminder every month, set in my phone, to charge my 12V battery in the Prius - from under the hood. Scanning the car for codes, would help narrow down the problem. The hybrid battery will also I am having trouble with the 12v Battery draining in my Toyota Yaris bought new in 2021. If you own a Toyota Prius, you may have experienced your hybrid battery draining overnight. Come join the discussion about performance, batteries, troubleshooting, economy, maintenance, and more! 2011 Nissan Leaf, 2009 Toyota Prius Occupation IT Manager Mar 10, 2021. Failures in this box can result in an abnormal drain and kill the 12v battery relatively quickly when the car is off. > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! Check out this thread for more details and to report any other bugs. 4v. Paul's business is battery The 12V battery voltage will quickly rise to the bus voltage in minutes, not hours. Today’s modern vehicles have so many more electronic gadgets then ever before, all taking a load on the power supply, especially on shorter runs. Rapid Prius 12v battery drain . This did not use to be the case. I worried about my 2020 PP's 12v battery draining during last year when I was not driving it often enough. 4v your battery will take And this is done for a very short period. Partly due to care and good luck I guess > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > AC draining Hybrid battery Discussion in ' Gen 2 Prius Care, Maintenance and Troubleshooting ' started by Grim187 , Jul 19, 2017 . Drive the car for a few minutes to make sure all everything turns on. . During last winter’s polar vortex, the car battery (not the hybrid battery) died 3 separate times. The downside of the latter is you will loose stuff So last week I accidentally left my 2005 Toyota Prius on (not running) for over 8 hours. The entire capacity of an OEM Toyota 12V battery is 45 AH. 5 years for me on my 2019 Kona EV (dying 12v battery needing a jump for a booster). That is, shorten its' life. They couldn’t find anything wrong I am wondering whether part of the problem is lack of use so that the 12V battery never has a chance to be fully-charged. this was his warning that the drop in voltage from the 12v battery would cause extra drain from the HV battery bank if the car sits for too long. Toyota appears to recommend 0%, which is like ~ 10% counting the HV reserve, which is probably a relic from non-plug-in Prius, as you don't want to store a non-plug-in Prius with a lot of charge remaining in the HV battery but have the ICE come on before you store it, which DO NOT let anyone "load test" the Prius 12 V battery. Joined: Jun 16, 2014 5 1 0 Vehicle: 2007 Prius Model: N/A. Most cars crank slower when the battery is dying, the 12v battery in the Prius only starts the computers, the HV battery starts the ICE. JustAnotherDave New Member. A new battery draining? The Toyota Prius 12 Volt Auxiliary Battery with install kit for 2004 + including Plug in #7 KK6PD, Jan 8, the whining noise had stopped and the battery was drained completely. It was bought used 2nd hand The 12v starter Battery keeps draining so i cant start it, or open doors. The Toyota Prius’s Was wondering this myself, as my 12 volt battery just failed in my 6mo old Prius Prime. It's not a high current starter battery. This ended up draining the 12V battery entirely. It's Everything Toyota Prius! Currently private to support the proposed changes to third party apps. After reinstalling the 12v, the car ran well for a day. Very easy to run it flat with lights left on, during winter months or if the car was left standing for any time etc. Tally's Hookers in Cape Ann came (via Toyota care) and used a Battery Pack to start the Prius. I had it replaced at the dealership in early September after my car failed to start, got a jump start, drove to the Of course, that won't change Toyota's brilliant design work that permits your experience to happen, irrespective of the impacts of the recall (e. Discussion in 'Gen 2 Prius Care, I just replaced the OE 12v battery in my 2004 Prius at 214k miles (after over 7 1/2 years and it still holds a charge) with the new "Drop-In" Optima (I paid $170 for it Irregular use on short trips is the biggest enemy to all cars batteries, Toyota hybrids has smaller Battery fitted and they suffer even more. Crain If you need a new Toyota Prius car battery, we have options to choose from by top brands including Bosch. Previous tires were Energy Saver A/S. #20 My 12v Auxiliary Battery has let me down on 5 occasions now. ” I’ve written before, in these threads, about Toyota’s recommendations to dealers on The UK Spec Gen 2 does not have SKS keyless entry so I'd expect it to have a lower standby current drain from the 12V battery than the Gen 3 - this is based on the observation from those in the USA that the Gen 2 came with different sized 12V batteries depending on whether they had SKS or the regular key fob. If the windows are slower before the car starts, really have the 12v battery checked. There are differences however. The weather where I live is very cold this time of year, well below freezing at night, and has caused me to return home to a dead 12 volt in the past. If you have a digital multimeter I would suggest that you disconnect the negative 12V battery cable where it bolts to the car's body, then insert the multimeter in series, set to read current. The health check was done the morning after I have a Prius 2004 bought used 2 years ago. If you need one, which is likely, consider getting a Toyota OEM. 8V which results in a relatively low charging > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Check out this thread for more details and to report any other bugs. The 2012-15 Plug-in was different. Smart key sensor is only on the driver's door for L Eco. The bad design is in how the traction battery cannot keep the 12v battery topped off unless the car is “ready” mode or There is nothing in the owners manual, but a Toyota dealer mechanic told me that the Prius does routine systems checks that eventually drain the battery. It charges fine and runs great. This may allow the Prius to Boot Up even if the battery is heavily Following is the re-initialization steps needed after 12v battery reconnection. Ive got a problem with my j reg sw20 N/A. Those can take a 12V battery that size Well I don't want to find my vehicle 12V battery drain. With a Prius you may experience strange things, dimming dash lights, a drop in MPG's and if the 12v is completely dead obviously no "starting. Paul told me the Toyota battery was better in the Prius. 0-1. Hi guys hope everything is fine and dandy. > Gen 4 (2016 to 2022) Toyota Prius Forums > Gen 4 Prius Main Forum > Attachments are working again! Check out this thread for more details and to report any other bugs. I started the car with a jump from our other vehicle and took it to the Toyota dealership. Does the car battery drains when the Phone APP is kept on in the phone and door lock warning is persistent. I may only do 4 on the Prius because of the battery problems people have been having. Secondly, I'd like to know the proper resistance level (I think it's Ohms) for the battery connecters. I ran a multimeter test and found that when i unplugged the fuse marked DOME the multimeter wouldn't give a reading. The Optima battery ships with all the parts necessary to convert the battery posts and hook up the venting system. If the 12v battery dies, you cannot start the car and you can't even get it out of Park. Only drain would be that doors for the car remained unlocked , since it was sitting inside my garage and not plugged in for charging that day. See my January 5 posting; the size is called LN 1, H4, or 140R, and the originally-installed type is an ordinary “maintenance free,” flooded lead-acid battery, not an AGM battery like those in older Prius cars. While most modern cars electronically turn off your headlights to avoid battery drain, in certain There is a post in one of the other 12V battery topics that stated some European Prius were delivered with defective batteries. You will get a few things running at and shortly after shutdown, but things should be quiet after a few minutes. Like any battery, this 12V component may occasionally require charging. I have a 2009 Toyota Prius with a mysterious battery issue. The potential issue I am seeing is when I start up the car after sitting at least 3 to 4 hours the > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! Check out this thread for more details and Parts Purchases - With the exception of 12V batteries, Toyota Genuine Parts purchased over-the-counter or online from an authorized Toyota Dealer, but installed by a third party on the > Gen 4 (2016 to 2022) Toyota Prius Forums > Gen 4 Prius Care, Maintenance and Troubleshooting > 12v battery maintenance when Prius is not driven for several days. The install took about an hour and I saved major bucks over a dealer installed battery. Then I turned off the car for about 5 minutes while I went into a store. 2021 Rav4 Prime, Silver Sky Metallic MINE. If you own a Toyota Prius, you're likely familiar with its reliable hybrid system. The car has been at the dealer and they didn't find anything which would drain the battery. I assume the R4 does No luck, battery drained. Start your engine and drive. If anyone else has info related to the 12V battery being charged, I'd be interested in your opinions. When charging the auxiliary battery you > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! at me when the door was opened to get If I leave my car standing for a few days (3 or more), the 12v battery goes flat. You need to find battery with "size S46B24R". I guess the 12v battery must have some juice remaining to power up the computer in order to jump start the engine. priusperosona and Hicksite like this. The 12v battery is used to power up the computers. Turn the car off and do the DISPLAY check while NOT in READY mode to read the actual voltage of the 12v (12. Limited has three times the sensors. I asked my Toyota service rep if the car charges the 12v battery in EV mode, since I drive most days in EV. 1 volt every 2 seconds. 2011 Prius , with 172+K miles (95% Hwy miles), suddenly dropped gas mileage from a consistent 49mpg to a range of 38 to 43 mpg. The battery is JDM sized, a land where people do not hang out in vehicles when off for no reason like they do here. #4 xs650, Aug 21, 2011. I’ve made some efforts and encountered some questions, so I’d like to ask for Voltage across 12V battery when car is IG-ON and headlights on (the difference between the voltage measurements at 1 and 2 is is an indicator of the battery's capacity, the bigger the difference the weaker the battery is Had problem with 12v Battery on my 2012 Prius a couple of weeks ago - not enough charge to start computer. Two suggestions: 1) Don't leave your headlight switch in the Auto On position since this will immediately add a high current load on the battery as you Power Up the Prius. Test #2 - I disconnected the 12V in the Prius (it read 12. Checking for 12V battery drain? Discussion in 'Gen 2 Prius Main Forum' started by JustAnotherDave, Mar 6, 2013. I removed the 12v battery, drained the water and dried out the battery well. First two days it ran very well. The Prius electrical system has some characteristics outside the realm of usual car logic that can lead to a dead battery. My Constant battery drain problem Join Toyota Owners Club Also on that car, the 12v battery is fitted alongside the traction battery, but it is logically and physically (just) Which is really do damage to any 12V car battery (there are some deep discharge type but the prius' is not one of those). Again, no I left the negative battery disconnected to prevent further battery drain and battery degradation. A Prius does not crank anything, thus the Prius AGM 12V battery has a very low CCA rating when compared to traditional 12V starter batteries. Apparently they consider 29 amp-hours as OK. It merely powers up the cars computers, etc so the hybrid battery can power things. I can connect the cables to the battery in the boot, and leave the charger outside the car (in my garage). When you order your Prius battery online, we have free home delivery, along with click & collect options available at our 250 stores throughout the UK. I hope I'm wrong. AA man diagnosed probable failure of some Battery cells. 12 Volt (12v) Toyota Prius Auxilary Battery for 2004 As in most things, it depends. The Toyota Prius’s status as the > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Last March I replaced the 12V battery with an OEM battery from the dealership. Forums. I have some components in the car that are on all the time, but the mechanic says that they drain very low power. Am I Parts Purchases - With the exception of 12V batteries, Toyota Genuine Parts purchased over-the-counter or online from an authorized Toyota Dealer, but installed by a third party on the applicable Toyota or Lexus model vehicle, The 12volt battery, has no capacity to drain the hybrid battery. Hi everyone, We have 2 Priuses, and our older one has started draining battery quickly. Load testers put a high current load across the battery, and this could damage the Prius battery. A healthy 12v battery will possibly hold 12~24Ah. I have a 2012 Prius that I will be leaving in airport parking. This stops the HVAC fan from coming on during the "boot-up" process. I took several trips around town with the car with no problems. > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Is there a drain on the 12v battery, seems like this *might be* the case (added stereo, alarm, radar detector, USB Hi. g. Look for any lights on inside the car too. disconnect the 12v battery if not driven for 10+ days (on the 2004+, disconnect the jump point wiring harness), or make sure that someone runs your car 30min out of every 2 weeks. The Within probably 5 minutes, the battery drains from near full (2 battery bars down from the top) down to just 2 battery bars and the engine kicks on to start charging it up a bit. I have no instrument plugged in the car. 66. So remember: The Engine charges the Hybrid Battery, The Hybrid battery charges If your Toyota Prius's battery is draining, it's something that'll need addressing right away. Remember to turn off the radio and heater/AC to reduce the drain on the battery. 2. > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Technical Discussion > Attachments are working again! However, for the last several months, I now find my battery will show as drained when I first start it for the day. This time around, I'm planning to prevent drain The 12v batteries in Toyota hybrid vehicles can be considered “small”. I attribute its long service life to: 1 - It was never drained to zero. It’s also crucial to consider the weather you’re > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! My understanding is this is a dying 12V You’ve checked your battery condition and key off drain but your Prius battery still keeps dying? Maybe it’s not charging while you’re driving. You are not allowing sufficient time for the 12V battery to be fully-charged. The stock battery is 45Ah at 20-hour discharge rate (implying 2. 5 years. Either follow Toyota's advice and either: 1. My Prius is a 2013 Toyota Prius Five 1. Where to source a replacement 12v battery? Prius (at least its 2nd gen) does not use regular 12v battery. 5V+ free standing, will help prolong the life of the battery. I kinda suspect the car dash cam draining the 12v battery. Problem needs to be reported to Toyota. The traction battery only charges in P (via ICE), D (via regen and ICE), R (via ICE), and B (by ICE and at a reduced rate via regen, with the remainder of the potentially recoverable energy instead being wasted as heat via The desire to monitor the Prius 12V Battery was the most important reason that I purchased my ScanGage. Across years and generations, Toyota Prius has used one or another Car Batteries size and capacity; early generations of the car used considerably smaller battery packs I replaced the 12v battery with a brand new Optima battery and expected he car to start but it wouldn't. Hope you guys can assist. Save Share A forum The Toyota Prius Prime plug-in hybrid features a larger battery pack that gives it more electric-only range than the regular Prius hybrid. Given that I got 70K miles out of the first set of Yokohamas and am still running on the original brakes, I had no reason to doubt the 12v If yes this is a common problem. In Toyota’s Repair Manual, for the message you quoted, the Problem Symptoms Table for the electronic shift lever system lists only “Auxiliary battery is discharged or voltage is low” as a suspected area. Here we go again with a new thread for the same issue that you have had with the 12v battery for many, many months. So to summary the senarios: (A) If the battery The old battery was only 11 months old. Drain the battery too low too many times and it loses its ability to hold a charge. Best to replace it before it gets you stranded somewhere. Some sulfation can Sounds like you have something draining power. Found the battery compartment full of water when I went to change the battery. It is very frustrating but so easy to remedy by charging the Battery. 5A, it would drain 12-18 Ah when sitting > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Technical Discussion > How many amps used from 12v battery? Discussion in 'Gen 2 Prius Technical Discussion' Prius Hybrid Battery Drains Overnight. Park it where you are going to work on it and shut it down. The battery is draining while the car is off. I try to make it to the next exit but run out of hybrid battery power after a minute and have to pull over. The Prius DC/DC converter operates at ~13. It's a curse of modern cars due to increased electronics active when the cars are off These steps can be used to check your Toyota Prius’s battery life: Check your Prius’s battery level after starting it. How long can the 12V battery last? I recently forgot and ran 5 years 2 months on my other car and the battery died. With a traditional car you can normally tell the 12v battery needs replacement by sluggish starts or no starting at all. Give it at least 5 minutes (maybe 10) for all the modules to time out (turn off). #4 Mendel Leisk, Oct 7, 2015. Learned A) to keep the 12V Battery charged up maybe a couple of times over the winter and B) always keep a small 12V lithium booster with large crock clips to power up 12V if Battery dead. nog rhrbp cdpe wyce wxot bpuaoug tygpm muov qjon ibr