[The Newell]

Novice Traveler,

It depends a lot on who manufactured the AGM. None should be charged at above 14.4 volts and some have current limits, the lowest I've seen being c/3. c/3 means that AH rating divided by 3 is the max charge current. Most makers, of AGM and flooded cells, permit c/1 charging. You should not deplete charge below 50 % for maximum life. So if You recharge at C/3 and limit discharges for max life your charge cycle should be just above 2 hours.