Forum Discussion

Naio's avatar
Naio
Explorer II
May 12, 2018

Is a Johnson AGM starting battery fully charged at 12.68v???

Buying a new chassis battery, it took me forever to find somebody who actually had an AGM one in stock, as opposed to just claiming they did. Got it yesterday. Johnson Control, sold under the Dur...
BFL13's avatar
BFL13
Explorer II
May 13, 2018
Mex, my AGM specs say nothing about a minimum charge rate, although I gather some AGM specs have that.

You have mentioned the 20% minimum before as though all AGMs have that requirement.

Mine have a max charging rate spec of about 30%. Some AGMs have no maximum like that and say you can use a very high rate. (Might be the same ones that have the minimum rate?)

So what's the story on all that? Thanks.

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