Quote:
Originally Posted by ecomodded
Good information, my car uses a 120 amp alternator so my losses are large, approximately 3.5 hp which when cruising on the hwy with the alternator cranking to recharge a low battery, my losses could be as hi as 25%.
Yesterday I split my 30 watt panel in two(it was 2 panels on a hinge) and put 1 panel on my Beetle's huge dashboard. The panel will keep my battery fully charged and aid the alternator when the car is in use.
I am pleased with the benefits of it.
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lets say your starter draws 500 amps for 4 seconds when starting.
your alternator would need to produce 120 amps for 16 seconds to recharge it.
then it draws the same 10 to 15 amps every other cars takes.