2oldman wrote:
FeeLine wrote:
I'm interested in the amps needed to make this type of stopping painless.
Then we need to know what you run with your batteries so it isn't so painful trying to guess. It has nothing to do with what kind of RV you drive.
Ding, ding, ding...we have a winner.
Go thru and estimate what you run off the batteries and how long you want to run it.
Multiply the hours of operation times the amp draw for each item(divide watts by 12 to get amps). Add maybe 25% as a fudge factor. This is the number of amp-hrs you need to supply.
When you buy the batteries, go with 3-4 times the amp-hrs you calculated. The reason is if you use the full rated amp-hrs of the batteries, they don't last very long.
Now that you know what you need pick paired 6v or 12v batteries that fit and have sufficent amp hours.