Two 6 volt batteries or two 12 volt batteries ??
Two 6 volt bats in series (12v) or two 12 volt batteries in parallel. Generally, which is a better way to go.amp hrs ??? Comments and experiences appreciated.
Forum Discussion
marcsbigfoot20b27 wrote:
I had the single OEM battery config grp 24. Upgraded to grp 31. Added 2 GC2 golf cart batteries that had to be set on the ground with cables run to the single.
Re-engineered the entire setup.
3 true deep cycle grp 31 AGM batteries (East Penn/Dekka) with 2/0 welding cable, able to mount the extra 2 batteries in a compartment since there is no outgsssing.
Original setup....pros- inexpensive batteries, can be found anywhere.
Cons - out gassing, slow rate of charge, always needed water, high self discharge, one dies both worthless, corrosion on terminals, must be in pairs, voltage drop when using 2000 psw inverter at 1300 watts.
New setup....
Cons- more expensive, only sams club has them in stock.
Pros- no outgassing, higher rate of charge/ less gen time with decent converter, never need water, one dies just remove it, no corrosion, lower self discharge, less voltage drop when pulling high amps with inverter, vibration resistant, mount it anywhere, add them in ones.
If you can afford double the price of GC2 then all the pros outweigh the cons imho. Plus you can go odd number of batteries or whatever suits your needs, not just pairs.
applications like yours with high inverter draw is another example where IMHO 12V wins. 6V vs. 12V really depends on YOUR application and needs to determine which is appropriate. each has noticeable advantages or disadvantages, depending on the application. Pick which works best for YOU.
