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ulvik's avatar
ulvik
Explorer
Sep 20, 2018

Having problem with new batteries going dead Fast!

I just bought a new to us 2015 Big Country 3650RL. I changed the existing older 12 volt batteries for two new 6V golf cart batteries and wired them to 12 volts. I also installed 2 100 watt Renogy Pane...
mike-s's avatar
mike-s
Explorer
Sep 21, 2018
Almot wrote:
A working solar and some other charging source, both running all day, and battery is still not near full?
That, and his controller doesn't have much control - 14.6V absorption voltage for FLA. A T-105 wants 14.82. A Sam's Club Duracell (Deka) wants 14.64. Costco Interstate (JCI?), higher than either.

And, that 95% is almost certainly based on just voltage, so even that 14.4V likely wasn't achieved, let alone for the hours needed.

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