RonJ Posted June 17, 2016 Report Posted June 17, 2016 I have a couple of used xspower d3100 batteries. i don't know how old.i had them tested at a battery store and one of them reads 800 cranking amps and the other one is over 1300.is the 800 cranking amp one a paper weight? I use a xspower charger psc15 to charge them and i have used the recovery.should i keep using the 800cranking amp one?
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