Any issues with 4 12 volt batteries?

Lyrikz wrote:
Just purchased a new toy hauler. Has 2 new 12 volt batteries installed. Right before i sold my other trailer i purchased 2 12 volt batteries. I want to run all 4. When they die, i will swap them out for 6 volt batteries.

There is nothing wrong with using 4 12 volt batteries wired in parallel correct???

i figure i cant return them, might as well get some good use out of them...