AGM Batteries storage maintenance charge
Two Trojan 6V AGM batteries in series (12v). If we put them into 6 months storage fully-charged what would you recommend as the minimum amps for a charger/maintainer? Thanks!
Forum Discussion
I think the OP meant what size of maintenance charger in amps, not how many amps should he be charging with. Each batt is full when it is accepting 0.5 amps or less for 12s but these are 6s, so 1.0 amp for the pair? So a 2 amp charger should do it.
Storage voltage should be temp adjusted from the battery spec storage voltage at 77F. Some AGMs have a higher spec voltage than others, so the AGM selection on any charger could be wrong for your AGMs or be right.
If you leave them with no wires on the terminals for 6 months they will be ok, but my AGM manual says after that long time you should do a full recharge routine and throw in an overcharge. It says you can go up to eight months without ruining my batts, don't know about Trojans if it is in their owner's manual
Storage voltage should be temp adjusted from the battery spec storage voltage at 77F. Some AGMs have a higher spec voltage than others, so the AGM selection on any charger could be wrong for your AGMs or be right.
If you leave them with no wires on the terminals for 6 months they will be ok, but my AGM manual says after that long time you should do a full recharge routine and throw in an overcharge. It says you can go up to eight months without ruining my batts, don't know about Trojans if it is in their owner's manual
