Re: Battery Scenario...Is this feasible?
As long as you do not go too deep into discharge (which engine starting should not do unless you flood the engine and just keep on cranking trying to start) and do not drive the temperature of the battery too high, you should not have any long term bad effect.
Originally Posted by Wanderman
You are right though that for a large engine which needs a lot of cranking amps to turn the engine over, you will need to parallel several RE batteries to get the same current capability of a cranking battery of the same size.
I once had a very old Datsun pickup with a 6 volt electrical system, and in the winter the starter pulled so much current that although the engine cranked just fine the terminal voltage of the cold battery dropped so low that the ignition would not drive a spark to actually start the engine. The solution was to let the battery run the ignition and turn over the engine with a hand crank.
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