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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...
Ed_Gee's avatar
Ed_Gee
Explorer II
Apr 28, 2019
wopachop wrote:
Seeing new messages.

My watt meter is not accurate anymore. Under load it was reading 12.15v but it turns out the real voltage was 12.3v as confirmed with 2 different multi meters.


That changes nothing.....that is still too low for the circumstances you described. As others keep telling you, your batteries don't appear to be getting fully charged....not even close.....

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