Are my batteries shot? Charging question
Hi All, I have 2 70AH 12v batteries conected for ~140AH @ 12v. I have a 10A charger on them overnight and it still says about 4A going in at 15v . I'm thinking these batteries are no longer taking a ...
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UPDATE;
I separated the batteries. I hooked the suspected good one up to the Trimetric by itself and it's fine. Good voltage and reads full.I guess the one that was dry when I got it is shot. Was hoping to finish the season out on these and go new in the spring. Looks like that won't happen. I'm considering a pair of 6v AGM's. Are these happy with the engine alternator charging while on the road or is that too much voltage for them? Thanks everyone for your help!
Greg
2013 GMC 3500HD, 10' AKC.
I separated the batteries. I hooked the suspected good one up to the Trimetric by itself and it's fine. Good voltage and reads full.I guess the one that was dry when I got it is shot. Was hoping to finish the season out on these and go new in the spring. Looks like that won't happen. I'm considering a pair of 6v AGM's. Are these happy with the engine alternator charging while on the road or is that too much voltage for them? Thanks everyone for your help!
Greg
2013 GMC 3500HD, 10' AKC.
