Forum Discussion
BFL13
Mar 28, 2020Explorer II
My 100AH AGMs are the same as these only different brand on them:
http://www.bestconverter.com/UB121000-100-AH-Deep-Cycle-_p_293.html#.Xn_QjUnsZpw
The charging specs for "cycle use" are 14.5- 14.9 volts (at 77F) When it is 35F that becomes 15.x with temp comp.
So for these AGMs the charging voltage is the same as for Trojan 6s and for some other 6s too.
It is those Lifelines that seem to have created the 14.4v myth for AGMs just because it is 14.4 for Lifelines.
EDIT--here is an interesting review of that above battery, comparing it with some others for deep cycle usage.
https://www.deepcyclemarinebattery.com/reviews/upg-ub121000-deep-cycle-agm-battery.html
http://www.bestconverter.com/UB121000-100-AH-Deep-Cycle-_p_293.html#.Xn_QjUnsZpw
The charging specs for "cycle use" are 14.5- 14.9 volts (at 77F) When it is 35F that becomes 15.x with temp comp.
So for these AGMs the charging voltage is the same as for Trojan 6s and for some other 6s too.
It is those Lifelines that seem to have created the 14.4v myth for AGMs just because it is 14.4 for Lifelines.
EDIT--here is an interesting review of that above battery, comparing it with some others for deep cycle usage.
https://www.deepcyclemarinebattery.com/reviews/upg-ub121000-deep-cycle-agm-battery.html
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