Prius (2010-12) :: 12V Battery Fully Drained / Car Won't Jump Start Either
Apr 1, 2013
The 12V battery must have been drained completely over the weekend. None of the lights (interior and exterior) are working. The car won't start even using jumper cable. I guess the 12v battery must have some juice remaining to power up the computer in order to jump start the engine. Am I correct in this assumption?
My Prius is only a little over three years. What is the warranty on the 12v battery? I read that the OE battery is not the best. How long would I expect the OE 12v battery to last?
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I drove my 2006 Passat 2.0T at night a few days ago. And I forgot to shut off the light. It came out that my battery was drained completely. After doing a jump start under my friend's assistance, I was able to run it again. But my radio remains dead, meaning it won't turn on by all means.
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If my traction battery has plenty of 'juice' in it, and my 12v battery is dead....is there any way to 'jump' the 12 volt battery with the traction battery to get the car started?
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Just had my first battery boost for my year-old Prius 2K10.
This morning I went to start the car, it didn't open the door for me, then I had all troubles in the world turning the key ... And obviously nothing was opening, no lights, nothing.
I had my car boosted. First time they put the booster, I couldn't start the car (everything showed up but starting the car didn't start the conventional motor - the lights were all on). They unplugged it (everything disappeared yet again) and plugged it back in ... Then I could start my car. Of course, everything was reset: time, trip meters, everything.
That's where I noticed my battery indicator was half-full.
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I just bought a certified 2010 Prius and have had it for 3 months now. Twice within one month, there was absolutely no power to start the car because the aux battery went dead overnight. I'm pretty sure I didn't leave any lights on and don't think I did anything differently when exiting the car for those 2 times. I took it into the dealership, and they couldn't find anything wrong. They said the battery was good. What is draining the battery overnight?
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Loaned my car to a friend who left something on and drained the 12v battery. Some "good person" tried to jump start the car and was unsuccessful. When I got there I attempted to jump start from the front and direct to the battery in the back, both unsuccessful. After having it hauled back, I charged the battery with my charger, no luck. When I put the keyfob in, press the break, and push the power on button; get green light on the power on button and a check engine light on the panel. This 12v battery is original battery and car has 100K miles.
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About a yr ago I bought a 2010 Prius with about 36,000 miles on it. Now I'm just about to crack 50,000. Late into the winter I began hearing this sound and thought it was odd. I figured it had something to do with the fact that it was winter and the engine/battery were working together to warm the car up as well as charge the battery. I took it to Toyota this past week and of course the "Service Experts" claimed this was "normal" as one of the managers owns a prius and claims they all do this. I know this to be false due to having owned one for a year now as well as reading up on a lot of the great info poster in here. Now in the defense of the mechanic that day, my battery was pretty well charged. The sound isnt nearly as harsh when the battery stays at or around half way charged.
Today while doing some cleaning inside my car i left the air on. As a result my battery drained low enough for the battery to begin charging. This brought on that miserable sound that continues to get louder and more noticeable with time.
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I have a RX350 2012 model. Recently, in last 3 weeks my battery has discharged 3-4 times, I had to call for a jump start.
I got my battery checked with my dealership and they say the reports from battery are excellent!
I am not sure why is it discharging? I just think there might be a sensor failure which is keeping something running in my car.
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My 12V battery is dead- not sure what happened, I usually double press the lock button to turn the headlights off immediately. It seemed odd- the taillights were on, but not the headlights and all interior dome lights were on but dim. I certainly did not get the 'door open' warning beep when I left the car.
The car is completely dead - no power locks, interior lights etc. I tried to jump start it using the fuse box jumper plate, but was not successful. I have heavy duty jumper cables and it seemed like they only contacted the jump plate at one singular point, but that was the best I could do. It was touching, just only one point on the 'teeth' was physically on the front metal part. I waited a full 5 minutes with the donor car revving and tried to start it, but nothing at all. (And yes, I was + red to + red) I tried to adjust the cable on the plate a few times, but could not get any better of a grip. No dashboard light or anything ever came on- the car was just as dead.
What could the problem be? Should I try smaller cables for a better connection with the plate? How long should it generally take while revving the donor car? Or is this something more sinister?
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I have a 2007 Prius Package Six. I went away on vacation over Christmas and when I got back the battery was dead and the car wouldn't start. No problem as I was easily able to jumpstart it with a portable battery jumpstarter. However I kept having the same problem as apparently the battery wasn't maintaining a charge. So obviously my battery is kaput and needs replacing. I've watched the videos and plan on replacing it myself.
However when I went out this morning to jumpstart the car it wouldn't jumpstart at all. When I hook up my battery jumpstarter nothing happens. Nothing lights up. The car won't start. Even if my 12v battery is completely dead and cannot maintain a charge, shouldn't I still be able to get the car started with a jumpstart? I realize that as soon as I turn it off I will have to jumpstart again. But I can't figure out why a jumpstart won't even get the car fired up.Am I missing something?
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So I bought a 2006 Prius from a dealership and drove it a few times in the first week I got it. The next 5 days or so I didn't use it, until today when I tried to start it up. The car wouldn't unlock with the key remote, so I opened it manually with the key. Then I tried to start it up, nothing. I then took a battery charger and hooked it up to the 12v battery under the hood. There was a constant beeping noise (like you were to honk your horn) then it stopped about 3 minutes later.
I charged it until it was fully charged (a green light pops up when it's full), but the car still wouldn't start nor were there any lights on the dashboard. I then opened the trunk and charged the battery until it was full, it too made a honking noise for a while then stopped. I saw all the lights (ABS, orange triangle, and others) light up so I thought maybe I was on the right track; however when the charger light turned green I unhooked the battery and tried to start the car. Again, no lights on the dashboard and nothing when I try to start the car. What is going on???
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I haven't been able to successfully jump my 2010 Prius. It sat for about a month and the 12v battery is dead. I've connected everything up as described in the manual. I've kept the second car at about 2K RPM for about 5 minutes to charge the Prius. I am able to get the Prius to start up just fine, but as soon as I disconnect the jumper cables, it dies right away. I've tried getting the Prius engine to come on for several minutes, but as i understand it, there's no alternator, so that's probably not charge the 12V battery.
I've gone through this cycle about three times now with the same results. Every posting I've seen doesn't indicate anything special needed after you disconnect the cables. Is there something I'm missing?
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My friends have a 2002 Accent with the 1.6 DOHC that I've been puttering around with all weekend.
The door was left open a crack and the battery drained. It was brought in, didn't charge right (he said he accidentally put the cables on reverse). Tried to install it, still did not start, put it back on charger correctly, and then re-installed. It was unknown at the time, but the black cable that went from the negative post to the fuse box popped off, and then he said there was no lights in the car, but tried to start it anyway.
We tested the battery both with a voltmeter and at a parts store - its testing like a brand new battery. I've tested all the fuses in the box under the hood, and in the box by the driver's feet. I also tested continuity in the ground to the engine, ground to the body, ground to the fuse box, and the alternator to the fuse box cables. All the wires show up as less than 0.5 ohms resistance (I'm assuming since I didn't get an infinity reading that they are intact).
I then tried to just put the key in the 'on' position to see what I could get - no interior lights, no start, no accessories at all. It wouldn't even let me shift it with the key in. I've got no clue what left to try. I guess these don't really have a "main relay" but at any event I don't know how to properly test these relays anyhow.
This used to be my car, and last year I replaced the positive cable to the starter, and the CD player was erroring out (it kept reading that there was a CD being inserted then stopping and then turning on the radio) so I just pulled the fuse under the hood. I don't know if they would have some effect over a year after the fact.
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For some reason, I didn't close my trunk door good last night and I discovered that the trunk remained open all night long, about 12 hours. I am worried that the trunk light may have drained my battery. The car started up just fine with no delays or odd noises.
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With A DeWalt 12V Battery....
I left the hatch up for a few days because I didn't drive it due to hot weather. The battery died on me of course. The dead battery measured 6.59v No amount of "battery recovery" time is going to recover it to start up the Prius. I charged up an old DeWalt 12V NiCad battery. I jump started the Prius with it. When I power down the Prius, the interior lights went back to really dim.
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I am wondering how does the jump start works on the Prius since it uses a electric motor to start the engine but not a conventional starter.I recently drained the 12V battery (left the interior lights on for two days) and had to take the battery out from the trunk to recharge it. Initially, I tried to jump start it at the specific jump port at the front of the car but it didn't have any effect at all. By that, I mean as if there was no external power source given to the Prius - i.e., no lights came on and no response when pressing the Start button.
I mean zero electric current at the Prius. Is the electronic starter motor power driven by the hybrid battery? If that is the case, it may explain why jump start didn't work in my case because it only passes the power to the 12V battery which doesn't drive the electric starter motor. So what good is the jump start for if it doesn't work like a conventional car? How this process works on Prius?
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I was waiting in the mall parking lot. I never got out of the car, so the headlights stayed on and drained the 12v battery. A good Samaritan "jumped" the car with a portable jump-start device. The next morning, I hit PriusChat and found out about the system diagnostic. It shows that battery has one foot in the grave and another on a banana peel - 12.1v at rest and dropping to 9.8v with the dome light on for a few minutes! Back to PriusChat to research replacement batteries, their sourcing and installation.
I have an Optima Yellow Top on order, as well as a pair of those jump-starters (One for the Pruis and one for the pickup). Before I install the new battery, should I have it trickle-charged overnight?
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My wife and I bought a 2006 prius almost a year ago and after going away for several weeks we came back with the battery completely drained. I was able to charge it back up. But after that, on the very first drive, most if not all CEL lights (Check engine, the triangular sign, ((!)), VSC) were on. I figured it was probably related to the battery that got drained since we had no problems before, and after all these warnings came the vehicle does not drive any different.
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I have a 2003 Saturn Vue. My wife left the key in run or Accessory position overnight and drained the battery. Now that I have recharged the battery the car will not start. The dealer where I bought it said to turn the ignition to the run position for an hour to reset the security system. Then turn it off and start it. They said this would reset the computer and reenable the fuel pump. Didn't work.
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Check hybrid system light came on and the whole dash lit up like a christmas tree. After i jumpstarted the 12v battery when it died. It was driving fine for about half an hour and all of a sudden the lights came on during acceleration from a stop light.
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Battery was fully charged when left it at night that in the morning the battery level would be less. This happened to a friend of mine twice so far.
The first time it happened she accidentally left the lights 'on' which supposed to turn off on their own after 30sec. But in the morning she's only left with 2 bars from fully charged. And a week later it happened again but without leaving the lights 'on', from almost full charge to 3 bars of battery in the morning.
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