dalefuji wrote:
I have two 6-volt batteries wired in series. If I understand this right, this gives me 12 volts and 100 amp. If I had two 12-volt batteries wired in parallel I would have 200 amps.
Can I switch to 2@ 12 volt batteries without problems with the power inverter or do I have to change or upgrade power inverter.
This is all a numbers game and your basic premise is faulty.
Not all batteries are alike.
12 volt batteries. most of these are MARINE/deep cycle or MARINE/rv Now Trolling batteries are True DEEP CYCLE.
group 24 about 75 amp horus
Groups 27 and 27 a bit under/over 100
Group 31. 130
The Marine Deep cycle means you can only use 20-25 percent of the power they hold before fast aging sets in.
GC2, is the most common Six volt, this is a "Golf Car" battery and is a TRUE deep cycle which means you can use half the power it contains.
And it holds 220 giver or take a bit amp hours.
So two Group 31's in parallel hold more power (slightly) than two GC-2's in series but you can't use as much of it.
Also there is a price advantage. This is why I recommend GC-2