Quote:
Originally Posted by Bob Bidonde
For your info, I found that using a charging rate of 12 Amps for 2 hours was enough to rejuvenate the 12V battery to start the car. However, the battery needs more charging to reach its full capacity.
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12 amps for 2 hours is only 24 amp hours, if you have a 100 amp hour battery it will need at least 12 hours at 12 amps to bring it to near full charge.