Quote:
Originally Posted by florabama
I also have the 2 12v bat and have to ask, will the 2 6v Trojans give me more amp hours?
I had Trojans in my last motorhome and they were great.
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When you connect two or more batteries in parallel you sum (add) the amp hours but the voltage remains the same. This would be the case of 12v batteries.
When you connect two or more batteries in series you sum (add) the voltage but the amp hours remains the same. This would be the case of two 6v batteries. (For those that use more pairs of 6v batteries, they have pairs connected in series and those pairs paralleled so you end up with a combination ... but I don't want to confuse the issue.)
So... generally two decent 12 v batteries will have similar amp hours of two 6v batteries. However, there are several benefits using 6v golf cart batteries. Their ruggedness and ability to handle many, many, many draw-down and recharge cycles are legendary. Generally (there I go with a broad brush again), they are desired by boondockers who tend to push their batteries to the extreme.
But to answer your specific question, you have to tell us the amp hours of your 12v batteries. You will add the amp hours of the two.
I/we can tell you anything you want to know about Trojan batteries. Many of us have researched them to death. I have their specs in .pdf on my phone for reference.