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Leo Parker
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19 Posts
Discussion Starter · #1 ·
I want to ask about car engine that how long do you have to run a car engine to charge the battery back to the point it was at before starting the car?
 

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Premium Member
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3,077 Posts
Your question is confusing the engine doesn't charge anything it only runs the generator. The generator provides power to the traction motors it doesn't charge the HV battery. Now if your looking to charge the 12 volt battery you can run the engine for 45 mins and after that time if you turn off the car and the 12 volt battery is still dead you need to replace the 12 volt battery.
AGM batteries dont do well after that have gone completely dead also remember those 12 volt batteries have been in the car since 2011 I would just replace it and not take a chance
 
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