RSD559 wrote:
My little trailer came with one group 27 battery. Two won't fit. So I tried swapping it out for a group 31 battery. Worked great until I plugged the trailer in. It would pop the fuse. Took it in to the dealer and they said that since the battery that came with the trailer worked, all is good. I wonder if it just pulled too much juice to charge. So I charge it in my garage and take it along as an extra. Nothing lost.
Good grief, you can use any size battery you want. Replacing a G27 with a G31 has absolutely nothing to do with blowing a fuse - you had some other issue, perhaps you incorrectly hooked up the new battery which would certainly blow the reverse polarity fuse on the converter.
