2013 prius battery drains overnight Battery drain is a common issue that Dodge Ram owners may face. Just park your car for 2-3 weeks and you 12v might be dead as the computer is constantly on and communicating with connected May 9, 2019 · EDIT: The battery draining is a parasitic drain. No need for concern. 5 volts. 2. Jun 16, 2015 · New to the forum, bought my 2006 prius in 2013 with about 130k miles on it. Jul 19, 2017 · 2009 - 2014 Ford F150 - 2013 F150 with battery drain - Hi everybody i am having an issue with a battery drain ? Battery goes dead overnight. Jul 4, 2013 · (A) If the battery is totally dead, the car won't start and you won't see any light on the dash board. 8v. Apr 14, 2018 · Check all battery connections, cables and grounds. But it's basically the same positive negative connections. then it happened again anf she was gonna buy a new battery. 9V represents 100% charge of AGM battery, 11. 4. Then, it happened twice yesterday, so I (1) switched to the other key fob that's sat unused since buying the Prius (2013), and (2) bought two batteries as I returned the first set thinking it was a "glitch" and I really didn't need them. Feb 26, 2021 · All that shows is your 12V battery is fairly discharged and the DC/DC converter is functioning and working very hard to get some charge into that battery. In the images below you can see a power supply set up to deliver a constant current of 55mA and the actual voltage drop across a 10A mini fuse is . I got curious and measured the dead coin battery's voltage with a multimeter. 54 amp (540ma) load on the turned off gen II prius. 2013 Equinox 3. 3 amps, the driving lights about 5 amps and the headlights an additional 5-6 amps. What does a car battery do? A car battery is mainly used to power the starter motor during ignition. A while ago someone posted a power chart; when the 12VDC battery got to 12 V; the charge current was dramatically reduced. I show a 3. Also, while troubleshooting, I used an Ampermeter to see how much the car drains with the key pulled off. The car sat for 8 hours in the parking garage. Jan 12, 2015 · After a few minutes, the Leaf goes to sleep and the power drain drops to (0. Had battery tested at Advanced Auto Parts and they said it was weak so I replaced it. The next day stick it back in and see if your battery is dead or not by starting vehicle. battery drain overnight. If the battery drains while driving, there’s likely an issue with your car’s alternator. Took it to local Toyota centre who replaced Battery. Jul 2, 2021 · Had problem with 12v Battery on my 2012 Prius a couple of weeks ago - not enough charge to start computer. 305V If you were using the A/C it would be normal as that can draw up to 10 amps from the battery and will drain it quickly at the maximum setting. Any minuscule drain will toast the battery. But . If the car stands over night the battery is complete dead next morning. Joined: Is the overnight draining an indication of a failing hybrid battery? 2013 16,575 8,462 0 Location: Oct 11, 2016 · The large, high voltage hybrid battery is in front of the smaller 12V battery, which is near the back bumper. Dec 2, 2009 · There is a common latch up problem with the gen II abs ecu whereby the 12 volt battery cannot bring the car to ready mode causing low voltage to the abs ecu and semi-permenantly energizing abs-1 relay and for ever after putting a . The only thing that dropped was when I pulled the radio fuse, but that only dropped about . Though sometimes it is just one, single night. Ever since I knew about this problem, I've been charging my battery with a Noco 5A battery charger. Jan 8, 2018 · After I had these repairs (or about 2 months after) the car would seem to drain completely overnight. Using a car battery in a riding lawn mower is overkill, but the cost is only about $20 more than the lawn mower battery and the car battery lasts 4 times longer than a crappy lawn mower battery. Was just happening occasionally with no certain pattern. 6L 130,000 2003 The 4th gen prime also has parasitic drain issues. Try this, once you car has sat a while turn it on Acc (no foot on the brake) and check how fast the power windows are, now start it and check again. ) Dec 12, 2010 · 1. I had a similar problem. she took it to the dealership and the first time they said it was fine. I installed a test light between the negative cable and the battery post and started pulling fuses watching for the light to go out. 7 volts with engine off, and 14. So, how long should a fully charged battery last with a . I have not seen any noticeable changes in the charge left on the battery. Remind your GF that if someone breaks into your garage, they will be able to drive the car away easily. 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 have nothing, like I have no 12v battery Installed. You can charge the battery before parking it for months by putting it in drive, putting your foot on the brake pedal, and holding down the gas for about 5 minutes until the battery is mostly charged up (max like 80%) I don't have a Prius yet but I was wondering if you're spending a lot of time in the Prius with the key fob does that not have an impact on the 12v battery since it's constantly in range?Do any of you have one of those faraday bags that prevent this? All input and explanations appreciated. Jan 15, 2014 · Hello I'm new to the Prius chat. Page 1 of 2 1 2 Next > The 2011 Toyota Sienna has 2 problems reported for battery continually drains. Feb 23, 2022 · I dropped the car off at Toyota service this morning and am leaving the car overnight. Transit Mk6 & Mk7 Forum. Did you "check air conditioner connection"? Mar 9, 2007 · The owner's manual of the Prius does talk to this. Finally after an hour, I disconnected the L2 from the Leaf and noticed a slight drop in power drain. 3. The engine and battery need to be taken care of if the weather is freezing outside. But when I use a Noco 5 amp battery charger and let it charge over 10 hours, the battery still drains after about five days. May 19, 2022 · Found something interesting on my 2005 camry battery going dead overnight occasionally. May 15, 2003 · The battery drain during start can be minimized by turning the climate control to the "off" position. This box has 28 capacitors which store energy as a backup for the brake system in case there is a loss of main power. Aug 3, 2020 · My 2013 Prius big battery 2 Answers. Jan 11, 2014 · 2013 Prius v 12v battery dead. I'm not sure how to turn it off in the newer Prius, but look at your owner's manual for turning off "smart key". All Transits 2000 - 2013. Nov 11, 2018 · One item that can cause a drain on the 12v battery while the car is off, is the (B18) Brake Control Power Supply. . As soon as you notice the power draining, it’s best to take your Prius in for a battery check or replacement if advised. Here are a couple of tests to see if your prius is affected Jan 23, 2022 · You might try turning off the smart key system for a few days. 1 volts. the Inverter is doing all it can to charge the aux battery back up and pulls a large instantaneous draw on the hybrid battery to do it. It's wider than the original I had (which was 350A), but it fits (had to remove the "arm" on the battery strap holder). 3v on a battery is considered discharged, and just dropping to 12. While most modern cars electronically turn off your headlights to avoid battery drain, in certain circumstances, some Prii (the plural for Prius) will actually turn them on. Again, no luck, the fob battery drained. Solution May 21, 2007 · I put my meter to it to see what the drain was, all I see when all doors are shut is . The result is the same: I try to turn the car on, to no avail, the battery is dead and needs to be jumped. Left car overnight. Put it this way, I have never heard any plug-in owner ever express concern over the 12v battery simply from leaving it plugged in short-term. You won't be able to stop the "booting process" or do anything about it until it drain up the battery. It became more frequent over time. Just park your car for 2-3 weeks and you 12v might be dead as the computer is constantly on and communicating with connected Jan 31, 2017 · My battery in my truck drains overnight, I pulled the negative battery cable and hooked up my multi-meter to the negative cable and the negative battery post. So I tried driving it some more but the problem would still occur at times. Nov 2, 2016 · About a year ago the 12V battery went completely dead on my 2014 Prius after not driving the car for about 5 - 6 days. Reinstall all parts that you had previously pulled for testing. Jan 6, 2019 · My 2014 Silverado battery was dead after sitting overnight. 003V new Eunicell coin battery voltage (purchased Aug 2015): 3. That seems to be quite a bit of discharge. Draw still happens after tests: Faulty alternator or ECU: Get a mechanic to run deeper tests. Sep 9, 2013 · My 2011 equinox battery is draining overnight. A sick battery like the one you have will never complete a charge no matter how long it stays on the charger. (B) If the battery charge state is very low, you'd see the engine light on and hear continuous whining noise. As far as not ever getting a "full" battery graph, that is not a big deal. Our 2018 Audi etron is on its 3rd 12 volt in 4 years. #3 Jim Porta , Nov 11, 2013 Jan 1, 2014 · Overnight my battery drains to the point that the remote key doesn't work (around 5 volts). However a true autolamp system will turn off the headlights after a time delay from when the vehicle was turned off. The first large mountains (1000-2000m high) this went alright. Battery listed as 100/150K At 55w each or 110w, it'll take only 6 hours to drain your hv battery. CarComplaints. Not necessarily over one, single night. May 15, 2003 · Via a simple connector change, I can substitute it for the Prius auxiliary battery should the Prius battery every go dead. I have a hood pin and so that was open. 02A. If you want to get a usable metric. Bought two batteries but didn't change them because the warning didn't come back. 6-15. Members Online Replaced my rear seats with a platform for storage area and for mattress. Dec 19, 2022 · But that should NOT drain down a healthy battery over just 12 hours. No luck, battery drained. But when I connected the old battery to the front jump-starting place, it started immediately and everything seemed ok. If it is too low, either skip the wash, or do something to boost the battery charge first. This is the black box located just to the driverside of the 12v battery. It's my daily driver. I'm guessing it was redirected to the traction battery. The plugged up Amp draw of the system seems to me to be at a level where a brand new 12v can handle it overnight, but the constant draining of the 12v battery nightly without replenishment until the car is turned on, is causing premature wear on the 12v battery so that it will eventually die, even during just a charge cycle. The engine was very loud. Average failure mileage is 31,100 miles. The 12v system, now constantly charged by the 201v system, drains both hv and 12v systems. This may allow the Prius to Boot Up even if the battery is heavily Dec 31, 2016 · Actually, there is an entry in the manual about how to disable the locks to prevent drain from long-term storage. 8 volts whit engine running. Jun 24, 2016 · battery; drain; hybrid; prius; Pro-289 Junior Member. Discussion in 'Gen 2 Prius Main Forum' started by mrspower, our other car is a 2013 Prius V. I started the car with the new battery and immediately turned it off. she got it jump started and took it to the dealership again. One the Prius, and all Toyota hybrids, the DC-DC converter charges the battery and powers the 12V systems once the car is Ready. com : Car complaints, car problems and defect information Mar 5, 2009 · If you pull the aux battery low sitting there in ACC The second you turn the car back on that low aux battery load is the biggest load the Inverter see's. 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. 4amps and use 50W 12v halogen bulbs to discharge because it's way faster and you get a visual indication of the discharge that you can see out of the corner of your eye. 1. Resetting fuse ECU-B NO. Customer: I have a 2014 Prius and the battery (the big one) seems to be draining overnight. AA man said there was something drainin Sep 30, 2019 · If your Toyota Prius's battery is draining, it's something that'll need addressing right away. After the battery has been charged, reconnect it to the car. I checked the 12V battery (at terminals in the fuse box) and it was reading 5. No dome light, no power lock, nothing. Since then I've kept it in good shape, changed the oil when I needed, never had to replace the standard 12v battery or had any other services done (Don't know if I need to). I would bet you either have a Drain something is sucking battery power with the key off. Jan 9, 2014 · The prius has a vent tube that other batteries don't have, pull off the vent tube of the old battery, attach it to the new battery. I’ve changed the alternator, the battery checks good, changed the BCM #3 30 amp fuse, but it is still draining. Sep 9, 2019 · If the battery reads 10,4v after sitting overnight, it's toast, 12. 400 mV across a 10A mini fuse indicates a current flow of 54mA. I pulled every fuse and relay in both fuse Jul 7, 2009 · Test #1 - I put a new battery in the fob and placed it inside 2 RF-resistant bags and waited a few hours. I just swapped my 2019 Kia Niro PHEV with only 12,000 miles, on its 2nd battery. i would schedule a trip to the dealer. Battery voltage (before unlocking car) was 12. Feb 11, 2021 · The SkyRC processor is calibrated to deal with smaller modules than what we work on, so ignore that max charge warning. the Prius will run the gas engine anyways for at least the first 5 minutes when started cold (longer if it is really cold or windy outside), to warm up the emissions components and itself, so don't blame the low battery. were completely dark. Same problem. I have a 2013 pip and the 12V failed late Dec 2013. Negative battery terminal disconnect and run the amp meter between it and the negative post. Jan 16, 2019 · The Prius electrical system has some characteristics outside the realm of usual car logic that can lead to a dead battery. The problem is that it drains overnight. I noticed last week that my hybrid battery has been dying very quickly. Pull it when you park the vehicle for the night. When measuring the current drain, I had the hood open (somewhat necessary to do this easily). You can drive your Prius, but it’ll be losing power any time soon. 7A to 0. Battery & alternator always checked good at parts store; just supposed to drive it more. Not major but wouldn't recommend it for weeks at a time. A low current 'Jump Source' cannot supply the necessary current to boot up the car while loaded with a near-dead battery. 022 A x 12. Jul 13, 2008 · Over the weekend I jumped it because it was too low to charge after sitting for a while. 3 fixed the problem Is it normal for a car battery to completely drain after a week of not driving? When I disconnect the battery I can leave for weeks, reconnect and start the truck. Also, the car sits in the garage at home upon arrival and overnight. The next day I go for a quick drive and the battery acts normal at first, but then very quickly drops down to purple/almost empty. Apr 18, 2008 · Alot of us do that routinely with our Prius's. Aug 28, 2020 · The primary issue: the battery is draining over night. . 5V Apr 18, 2008 · 45-50 is pretty common around here, but over 50 is certainly achievable if you drive correctly and there is nothing wrong with your car. In hot conditions with heavy AC use, the AC can drain the battery quickly. Jan 14, 2022 · Our experience with PHEVs is that the 12 volt batteries are the weakest part of the overall design. I used the AC on max. 2 amp draw, the interior light adds 1. A parasitic draw or drain is when an electrical system continues to drain power from the battery even when the ignition is switched off. 2 amp parasitic draw on it? Nov 18, 2017 · At first I drove very slow uphill hoping this is best for the battery (battery went quickly down from blue area to 2 bars, I drive around 30km/h uphill constantly). Aug 11, 2022 · Extreme Temperature: Both hot and cold temperatures can affect the battery’s ability to hold a charge, leading to battery drain. The next day by mid-morning it was down to 8 V. It was going good for a few months until a few days ago I forgot turn off my exterior headlights and it drained the battery. Dec 27, 2017 · The next day the battery is dead again. 4 volts (It's currently about 30 degrees F). Some signs of a failing battery or having Prius battery problems are a car that’s difficult to start, dim headlights, or a power steering pump that Dec 20, 2011 · On Friday, (the day before the noticeable drain in the morning), I worked 10am to 6:30pm When leaving to work the temp was about 75. Open the driver's window so you can easily enter the car if you have a problem with the door locks. I left my car for about an hour in the 90 degree sun and when I started it showed very low big battery. Nov 5, 2006 · 3. Second installed a new battery. I jump started the car and did a drive for ~30 mins. Dec 13, 2016 · Last month, my Prius started giving me low keyfob battery warning messages due to the cold weather, so I decided to change it. The issue is that the small 12v battery which powers the computer could, with the normal power usage of the various systems of the car (even when the car is off some things are on and using power, like the smart key system, radio, etc. Take apart the old one and put in the new one. Warnings are legal CYA that's par for the course. 9V represents approx. I thought for sure the battery was wasted. If the hybrid battery is draining overnight, it's probably not due to the open door. Jul 30, 2023 · PS even though you drove the car for a few hours; the cars charging ECU prioritizes traction battery charging over starter battery. 5 amps. It struggles to accelerate because there is no hybrid assist, until I drive about quarter mile and get a couple bars in. The 12v battery is rated for 45amp hours 540watt hours, which will be depleted in about 5 hours. It’s just not as bad. It will always show current draw no matter how long the charger is on it. I set a timer for 30 minutes and came back a half hour later and the drain was still the same. Aug 17, 2022 · I have a 2013 Dodge Dart Limited 2. The crack, bulges, icicles, or frost will compel you to replace the battery completely. Jul 10, 2019 · As long is the battery is 13. Put a charger on the 12V battery for at least an overnight period, so that it doesn't deteriorate further. 0% charge. Jan 3, 2023 · The drain on the battery, if present, should be checked with an inline amp meter. So a low current overnight charge may not bring the battery up to full charge. The struggling 12v battery doesn’t seem to be related to the charging cable at all, since I only occasionally charge the traction battery to 100%, and never leave it attached to a charger longer than it needs to be. Either a portable jump starter or jump starting easily got it going. At one point I heard the battery fan blowing very loud and started worrying about the battery. The DC-DC converter on the Prius has two levels of output: 13. I didn't start the car for about 3 days and left it outside (temps are around 30F). Third chased all wiring and found no drain. It shows I'm pulling 3. If it aint dead then you likely have the stereotypical bad ground which causes the BCM not to goto sleep when you leave the vehicle which runs the battery down overnight. If the battery sits unused for months it can discharge too far. S. I've connected the old battery with jump cables to the back, still nothing. as the battery gets older, the battery looses it's ability to hold a charge as long or charge as much each time it is charged. Jan 19, 2023 · Do you have Prius 12v battery issues? IS MY 12V BATTERY DEAD? Some of the symptoms of a dead or dying 12v battery are: Can’t unlock the car with key fob (if this is your only issue check battery inside the key fob) Car won’t start or lights flicker; Dim headlights/dome lights; Windows roll down slower than usual; Trunk won’t open But only much more recently , I leave the car untouched overnight and I could not start next morning the voltage would only read 10V and needed to jump start it. As for settings I charge at 4. Oct 17, 2020 · The first goto should be the BCM fuse. P. The car still starts in the morning and I can drive around a bit to top the battery off, but what is causing the hybrid battery to drain? Mechanic's Assistant: Do you remember the last time the battery was replaced? Have there been changes in the weather In the chart above you can see that a voltage drop of . Feb 3, 2020 · 2021 Mustang Mach-e Premium 2019 MDX Sport Hybrid tech, 2017 Prius Prime premium 2016 MB GLE 350 4Matic 2013 TL (105K bought from daughter at 94K), 2003 MDX Touring bought at 73K going on 196K. If that doesn't fix it, check for parasitic power drain. If it sits overnight the 2 week old battery is dead. 5 Amp draw. Nov 10, 2013 · I believe the smart key in the car causes extra communications between the car and the key which causes some extra drain on the 12v battery. After dealing with it by simply jump starting it every morning I am about at my wits end due to the cold weather so I did what anyone probably would do and replaced the battery. Since you were using heat that wouldn't be the case. 25 posts • Page 1 of 2 • 1, 2. I noticed that with the doors closed, key out, the radio screen is "glowing gray" and does not go out even after sitting for an hour. No major draw, but battery weak: Aging or damaged battery: Test it and replace if needed. Temperature is a vital issue when it comes to driving a Prius. Mar 31, 2008 · Like most cars, the 12 battery in a Prius lasts about 4 years. If too hot to shut off the AC, then look at the battery meter before entering the car wash. 2013 2:15 pm, edited 1 time in total. The potential issue I am seeing is when I start up the car after sitting at least 3 to 4 hours the battery will drain to 2 bars quickly (within a couple of minutes). Dec 31, 2016 · Front washer connector (Black/Lt blue thick) - Both battery voltage Rear washer connector (Violet/Lt blue thin) - Both battery voltage Powered OFF: Front washer connector - Both 0V Rear washer connector - Violet 0V, Lt blue is battery voltage So voltage coming through the IG1 Relay to the fuses to the motors appears fine. I jump started it with my father’s car but now it keeps dying after not being used for some time. 0L, the battery is draining overnight after about a day and a half of sitting. ] - if applicable) and has rested overnight (this will show approximate state-of-charge, 12. There were codes resulting from the computer shutting components down due to a lack of power but nothing pointing to the source of the problem. 3 or below a couple times usually will "kill" the battery (one or more cells won't hold a charge) and need replacing. 1st mechanic installed a new alternator. Check and clean the battery cables if the cables are loose or dirty the power from the alternator can t reach the battery. It could be a few days of non-use, or a week. 2 amp-hour back-up battery, I can blow the fuse on every start if the climate control is set to "auto". Nov 12, 2024 · A data point on my (other) working Prius's EV pack is that it seems to drain down to half full when the car is sitting overnight (according to the dash gauge). Especially if the key fob was near the vehicle where the two could communicate with each other. Connect a multi-meter between the positive battery post and the (disconnected) positive battery cable. FAQs about car batteries. I Dec 5, 2019 · Prius and all other hybrids that are using NiMH have software built into the BCM (battery Control Module) that only allows the battery to cycle anywhere from 20 to 80 percent state of charge. 395mV, which is pretty darn close to what the chart predicts. Apr 27, 2022 · Trying to contact @toyota Bought Prius Prime 2019, 38,000 mi & battery went dead & had to be replaced & no one seems to know why? Happened in the KY woods, had to wait 6 hours for a tow truck, overnight in a city we did not want to overnight in. The battery was new. Aug 22, 2007 · 4. It says that the drain is caused by the instrument panel brightness lever, located on the overhead console. If truck wasn't driven every 3-4 days, it wouldn't start. Jun 3, 2005 · 3. Dec 31, 2022 · All these things put a slow drain on the battery. Usually, when the battery is new it isn't noticed as it will last longer, so the car can sit longer and still be able to use it without a jump. I did check the alternator with a technician, which claims alternator is working OK, then I changed the battery to a new one. Here is the bulletin: May 9, 2019 · EDIT: The battery draining is a parasitic drain. So my car battery keeps dying. On Monday morning, it shows 1 bar. Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by kellybarron, May 12, 2016. read thru some of the newbe threads here and tips for better mileage. At this point battery is at 12. And the Inverter uses the Hybrid battery as its power. I am sure there will be some drain due to all the electronics this car has but it should be very low, not sure what the normal is, but less than 1/3 amp my guess? Jun 16, 2014 · 2007 Prius battery draining. Car is off, all lights off, including hatch light (there is a switch) when doing this measurement. A few months back I would die if not used for a few hours so we got the battery replaced. Also evident in the data is the drain on the high voltage battery pack as MG1 acts as a motor to spin the engine up to speed. It advertises to "Detects sulfation and acid stratification and restores lost performance". Jun 9, 2020 · Background: 2016 Prius two with 40,000 miles recently purchased a couple months ago. It was designed to kill the headlights after the car is powered down and the drivers door is opened. 2 Volts, and you have enough CCA's it won't screw with the electronic system. Jan 25, 2006 · The desire to monitor the Prius 12V Battery was the most important reason that I purchased my ScanGage. Oct 27, 2021 · But, if you recently replaced your car battery, then it could mean that you left a light on overnight causing it to drain. The Cadillac dealer found nothing. Any suggestions on the next troubleshooting step? Mar 20, 2024 · Many auto experts believe that the reason behind Nissan’s battery drain issue is parasitic draws. I’m not sure how long it’s been doing this because previously I was driving the truck everyday and now, it only gets driven once a week at best. 5. What should the voltage of my car battery be? May 31, 2021 · I’ve been chasing a battery drain for almost six months now. I left it overnight and made sure all lights etc were off. Dec 13, 2024 · Battery drains overnight: A trunk or glove box light stuck on: Check and fix the switches. If the climate control is set to "off", the fuse will not blow. I’ve had the battery and alternator tested multiples times and both always test good. If you don't want to drive around, then Search for threads about 'forced charging'. this started happen more frequently I thought it was the battery was faulty or dead cell? My 2006 Prius seems to be draining when I leave it parked over the weekend. The 4th gen prime also has parasitic drain issues. Jul 9, 2010 · My 2010 Prius II's 12V battery drained every other day. I pulled every fuse and relay I can find (fuse box under the hood and under the glove box). The bad design is in how the traction battery cannot keep the 12v battery topped off unless the car is “ready” mode or actively charging. Remove positive terminal from drivers side battery. 2 things tho, your battery should not be full every time you get home and it should not be empty every morning. 7 volts, and when started it went to 13. 3 V = ) 0. Get an OBD2 bluetooth adapter and download Hybrid Assistant/Hybrid Reporter and plot the min/max hybrid voltage values under engine off cruising and Jul 17, 2006 · Prius auto-off is a stop gap feature to help protect the 12v battery. The screen shows it's over 3/4 charged when I park Friday night. Measured amps while pulling each fuses, only the ECU-B fuse reduced amps from 0. If so, your hybrid battery may be getting weak and may be in need of replacement soon. After driving it around for 30 mins the voltage (measured at the front jump point) was just over 12 V. This is bad for battery health. This seems a bit high to me, but doesn't seem like it would be a 'dead battery' issue, and besides, it drains overnight, not after a drive. I did check the 12-volt battery using the diagnostic mode last night after getting home and noticed that the 12-volt battery charge at rest was about 11. Mar 6, 2024 · I have a 2013 335i, F30, N55 with 120k miles. Jul 29, 2013 · Reconnected everything back and the car won't start. 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. Our Gen 2 Prius manual said to turn off the smart key system if leaving the car inactive for a period of time as it would drain the 12v battery. This is very taxing on the battery. 195K miles, original factory battery. I park my car outside and the temps have varied from 40's overnight to 80's overnight. When leaving work the temp was over 80, not sure of exact temp. 46 I started pulling fuses and found two that are draining the battery You will see in Red the Fuses that are draining the battery. Nov 8, 2022 · A Prius 12v battery merely powers up the electronics and then the big hybrid battery is what spins the engine for ignition. It’s a 2013 with 14,000 miles. Aug 25, 2013 · I got the key fob battery low warning a few weeks back. AA man diagnosed probable failure of some Battery cells. Jan 2, 2012 · My Cadillac still has a parasitic battery drain. Check for a voltage drain is there something left on that is draining the battery overnight like a trunk, glove box or hood light. Due to the small size, the 12v drains itself in about 6 weeks of low use/no use due to the small electronic devices it powers while the car is off. If the battery level gets low enough (depending on what gear you are in) it'll turn on the gasoline engine to recharge it. Recently I found a bulletin about this problem. Nov 7, 2023 · Last year I started having a battery drain problem. Feb 7, 2016 · > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > New Prius battery draining while car off Discussion in ' Gen 2 Prius Care, Maintenance and Troubleshooting ' started by Dvizzy , Sep 17, 2017 . I started having problems with my battery going dead, especially overnight. Mar 10, 2024 · I have a 1-month-old Prius Prime that is having significant levels of 12v discharge (killing the battery twice so far). 2706 watts drain on the battery. You could try downloading the Dr Prius app and getting an OBD adapter so you can do some health checks on it. I recharged it and it discharged again. Hey guys, I have a 2007 Gen II with 148k miles. ), drain when sitting too long. Turns out that the 12V was the source of low EV range as the traction battery charges the 12 V by DC-DC conversion. When running a couple of leads from the battery to a voltmeter, I closed the hood. #3 sam spade 2 , Dec 20, 2022 Jul 20, 2006 · I believe I have read that if they are too close to the vehicle then it does drain your battery. Test #2 - I disconnected the 12V in the Prius (it read 12. All displays, indicators, lights, etc. I have had the battery,alternator,and starter testedall showing good status. The near-dead 35 Amp-hour Prius battery needs to be charged for 48 hours with a trickle charger (1 Amp rated). old coin battery voltage (purchased Aug 2015 lasted 16months): 3. 58VDC) and then put a new battery in the second fob and waited an hour or two. This stops the HVAC fan from coming on during the "boot-up" process. If it is draining while your Prius isn’t running, something is drawing current that shouldn’t be. I will leave it in the evening, the hybrid battery shows 60-70% charge. (Maybe a short circuit is draining the battery?) So I bought a new battery and installed it. Measure voltage draw. This is your go-to subreddit for people who are considering living out of their Prius, or those that already do and want to share their setup. they told her that the battery is fine and that the problem is that she is keeping her key fob too close to her car and that causes it May 23, 2020 · Hi guys, This morning my 2013 Prius V failed to boot into "Ready" mode, a battery test suggested the 12v has lost charge completely. Feb 9, 2018 · Bought a new AGM battery (bought Optima Yellow Top 750A). A healthy battery will charge to full real quick. measure the battery at the battery terminals or the front jump point after the car has been off overnight. Apr 20, 2015 · Voltage across 12V battery when car is IG-OFF (all doors closed and locked, Smart fob far away [more than 15 feet. 25 amps to this, the trunk light only about . The battery drain should be low, but doing things like keeping the keys near the car on a regular basis or the keys passing the car frequently while within range can cause unnecessary power My aunt has a 2021 electric blue prius and its battery keeps dying. Two days later battery was totally flat. May 24, 2017 · My 2013 F-150 Eco-Boost has a parasitic drain. If I place a 20 amp fuse in series with this 7. It’s like leaving your headlights on all the time, except parasitic drains are much harder to spot. The open hatch should not be draining the hybrid battery overnight--that's out of the circuit (isolated from 12V loads) when the car's off, AFAIK. It charges back up normally (not too fast) after driving for 5 to 10 minutes. May 5, 2014 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Dec 15, 2021 · We replaced the battery with this 590cca AGM battery: Advance Auto Parts - Down for Maintenance The alternator output varies day-to-day between 14. Oct 2, 2022 · If you regularly drive in cold weather, the lead plates of the battery case can crack. I'm going on 5+ years on the stock Prius battery with no issues. ~Amanda #1 mrspower, Jun 16, 2014. Electrical issues, parasitic drain, battery age, faulty charging systems, and extreme temperatures are all common causes of battery drain. ojtnx cqksh dfyr dhoe ewibowtm mceubo jzkc yknjk vhfj cpwgj ccmmch dkf bgtpd kqbqtt caynsal