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The hybrid battery’s charge condition really has nothing to do with the 12 volt battery. The hybrid battery does even participate in anything...
...I would say the majority of people on here with a dead 12 volt battery is because they don't arm the alarm every single time they get out of it...
The traction battery (aka hybrid battery) gets the engine going, but if the 12 volt battery is dead, the car won't "boot up".
12 volt battery is dead because you left all the doors open for hours?
The traction battery will very slowly lose charge while it is stored. Don't know if two months is long enough to do any harm. Is your roomy able...
Those are all nags for a dead 12 volt battery. Its throwing the bad 12v battery alarm on boot up.
A 12 volt battery reading nine volts: not a good time for interstate travel. Start with the low-hanging fruit: change the battery. If you want to...
Replace the 12 volt battery. The fact it ran down and was dead for a month killled it. If you had a voltmeter you would be able to clearly see...
...back on. Like in the picture. Here's a grab of all Dead 12 Volt Battery posts using the search forums link:...
the 12 volt battery is used to boot up the computer that starts the car. When it's dead the computer won't send the 200 volts to MG1. 12 volts is...
Replace the 12 volt battery and stop jumping it. The 12 volt battery was bad when you bought it. Dead battery after new purchase is easy to...
Just heard from Toyota. The 12 volt battery had a bad cell. The car was still under warranty so they replaced the 12 volt battery and the car is...
Well if your 12 volt battery is so low that a trickle charger is struggling with it the battery needs to be replaced. Charging the battery...
At what point with a "Dead Hybrid Battery" does the 12 V. battery quit getting charged? The term dead I am sure is not "0" volts but rather...
The POINT is, not that there was a dead original battery, but that it was TWELVE YEARS OLD. It came with this 2008 Prius. Not that I had any...
Put the jump start kit in the car so if the 12 volt battery is dead you can jump it.
Reiterating Leadfoot's point, that will "get you going in about a minute' if your only problem is a discharged 12 volt battery. It will not do...
...headlights and see if there bright. If not you have a dead 12 volt battery that's in the trunk on the passenger side. Battery is probably very...
With all the dc to dc nags and a really bad 12 volt that goes dead a lot I would Think there’s a correlation there. First thing I would have done...
...because the last thing in the world you want is to be stranded from a dead 12 volt battery in a G2 Prius. That sometimes gets very very expensive.