Forum Discussion

ron_dittmer's avatar
ron_dittmer
Explorer III
Oct 13, 2014

Batteries: Two-6V In Series, or Two-12V In Parallel ???

Before spring I will be replacing our two 12V Walmart coach batteries. Our 7 year old rig has it's original Tripplite 2000 watt inverter/charger similar to THIS ONE. I was thinking of replacing the ...
Class C
DiploStrat's avatar
DiploStrat
Explorer
Apr 30, 2015
ron.dittmer wrote:
...
Of course now that I am done, someone tells me AGMs may require a higher charging voltage. Is there any truth and concern to that?


Couldn't find a Duracell manual on line, but I found this quote on the Duracell site: "The maximum charge rate in amperes should be no more than 1/3 of the battery’s reserve capacity minute rating. If the terminal voltage exceeds 16.0 volts while charging, reduce the charge rate."

Based on that, you should be fine with any vehicle charger that runs at 14v or more, (at 20C) and has a total output of 200A or so.

Make sure that all of your cabling, including the link between the batteries, is properly sized and clean and tight.

About Motorhome Group

38,763 PostsLatest Activity: Mar 21, 2016