2005 cub hybrid - battery does not charge

I finally found the resettable circuit breaker for the 12 volt system. I can't find any in-line fuses, but the circuit breaker solved the problem in my case (and maybe the last post is saying the 12-volt fuse isn't in line, but rather inside the inverter on a printed circuit board). The 12-V breaker was right under the dinette u-shaped seat, on the side of the wall separating the under-seat storage from the battery compartment. I can't attach a photo, so hopefully that description is clear enough.