6 or 12 That is the question
Friends just bought a new 32-34' Cougar 5er (much better quality than I expected) . They have not added the batteries yet at the Dealer. They have a Solar Panel on the roof and a 2,000 Inverter. I ...
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ssthrd wrote:
Which is better-- 2x6V deep cycle or 2x12V deep cycle for boondocking? My setup right now is 2x6V which gives me 260 ah. I found 2x12V that will give me (2x150=) 300ah. Are the 12's really better than the 6's?
assuming you keep your amp draw to 30A peak or so, I'd go with 6V. that is typical load is some LED lights, a gas fridge, an exhaust fan.
Now a pair of 6V GC2, 250AH useable AH is 250*0.75 about 180-190AH. That's correct, you can discharge typical GC2 batteries down to 25% SOC and STILL get hundreds of cycles out of them. Trojan std GC2 is 500 cycles @ 75% DOD. Compare that to a very good set of 12V that give you life at 50% DOD, even trojan 12V deep discharge cycle life drops like rock once you go below 50% DOD. So the 300AH 12V give you 150AH cycle life at 50%. Advantage goes to GC2.
