I can speak for motorcycles, but not cars. I have lithium batteries in both of my bikes. 1 1/2 lbs. (instead of 8-10), they hold a charge for up to 1 year without a trickle charger, no special charger needed (1/2 hours on 6 amps and they are fully charged), they can be mounted in any position and don't out-gas hydrogen, and they work fine with the stock alternator and voltage regulator. However, they are about twice to three times the price of a lead-acid motorcycle battery, and they work poorly CCA) in temperatures below freezing. Do a search, I bet they are out there.
Last edited by Joe B; 04-13-2014 at 08:56 PM.
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