Forum Discussion

kuziwk's avatar
kuziwk
Explorer
Apr 12, 2016

86 Glendale Sterling, Gel batteries

Hey guys so I bought this motorohome with 130,000KM on it. There is only one deep cycle battery under the hood with an allanson charger converter. The pervious owner had installed a small solar panel maybe like 50 watt with a module that maintains and charges the battery. I have been given 4 gel batteries however I have not found the best way to hook these up. There are two storage locations on the driver side outside the motorhome which may work. The most obvious is the space nearest to the engine bay where the generator would go, however I would like to install a generator in here. I found another spot which would work under the rear master bed which is also where the charge converter is. How would I wire these batteries up to the charge converter?

I was thinking of just hooking this up to the distribution panel and than getting a separate solar charger since the charger converter charges at 40 amps in 120 volt mode and the gel batteries I understand should be charged at 5 amps. The other option which is a pain is running 0AWG 28 FT back to the engine bay to the deep cycle battery under the hood. The downside is when plugged into 120v, unless I install a switch and turn it off when plugged into 120v. Does anyone have suggestions?

On a side note each gel battery weighs about 80 LBS, should I be concerned about added a 350LBs generator in the front compartment and 320 LBS of batteries near the end of the unit under the bed? Willthis make driving unstable?
  • True Gel batteries (ie not AGM) are not compatible with AGM/Wet-cell chargers. I'ts not the amps, it's the charging voltage.

    charging a Gel== 14.0 to 14.2V (float==13.1 to 13.3)
    charging a AGM== 14.4 to 15V (float==13.3 to 13.8)
    charging a "regular"== 14.4 to 14.9V (float== 13.1 to 13.4)

    So, if you are using real gel-cells and charging them with an regular or AGM charger, you will fry the batteries

    I can't really address you weight question