Forum Discussion

gitpicker2009's avatar
gitpicker2009
Explorer
Jul 10, 2023

switching to two 6 volt batteries?

I'm about to replace my two AF1150 batteries. They're currently Interstate Deep Cycle 12 volts wired in parallel.
I'm thinking of going with two 6Volt golf cart batteries. Sam's sells the Duracell EGC2 for 150 bucks. Specs:
20 amp hour rate: 230
5 amp hour rate:174
Battery electrolyte composition: acid
Battery end type: top post
Battery purpose: deep cycle
BCI group size: GC2
Freight class: 65
Minutes at 25 amps: 448
Minutes at 75 amps: 120
Terminal type: DIN
Volts: six

I was thinking that with the 2 two wired in series, I'd be better off on the Amp Hour rating. Any opinions?

Thanks as always
Truck Campers

24 Replies

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  • Grit_dog's avatar
    Grit_dog
    Navigator II
    Jul 10, 2023
    Yes you’ll get more useable capacity out of the 2 6v. Yes it’s that easy to just hook them up in series. Not other mods needed.
    No, 99% sure they won’t fit in your battery compartment, at least not without removing the sliding tray.
    For our old AF TC I got Mighty Max SLA, good ole Amazon specials. They are 200 or more ah but are shorter and fit with the tray installed.
  • 3_tons's avatar
    3_tons
    Explorer III
    Jul 10, 2023
    As a cost performance quotient definitely go with the GC’s because they are more robust, meaning routinely capable of a somewhat greater DOD (depth of discharge) without adversely affecting longevity as used in golf carts, versus a 50% DOD with your present battery …They are about 3/4” taller to top of battery post than your present battery…

    3 tons
  • _1Flyboy's avatar
    _1Flyboy
    Explorer II
    Jul 10, 2023
    ….. I’d recommend 2 - 6 Volt AGM ( No adding water, No acid fumes, Maintenance free, can mount in ANY position, Lasts Longer, proven technology, etc., etc. ) batteries … I also removed the battery tray from my AF to get rid of some weight & make more room in the battery compartment……
  • CA_Traveler's avatar
    CA_Traveler
    Explorer III
    Jul 10, 2023
    If your 12V are Marine type then they are a modified starter battery and not nearly as good as GC2s. Do your 12V batteries have a 20 amp hour rate? Likely 180AH+ vs 230AH. Be aware that GC2s are taller.

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