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wopachop's avatar
wopachop
Explorer
Apr 28, 2019

Whats normal voltage drop from a 4amp load? (210ah)

I have two brand new 6v from costco. I pulled 20amp hours out of them a week ago and then fully charged with an automotive battery tender. Today i put a 3.8a load on them and voltage is down at 12...
shastagary's avatar
shastagary
Explorer
Apr 28, 2019
test your voltage wile you are charging and you think the battery is fully charged then unhook the charger and see what the battery voltage is when the charger is off it should not go below 12.8 for a long time after the charging is done.

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