Thanks everyone. I just got back from a long weekend trip with the camper. I didn't have a chance to look into anything before I left so just had to live with it as is. Meaning no fridge! Anyway, while away, the other electrical devices that HAD been working failed. So it at least seems like, at this point, the battery was slowly dying. Is it possible that devices died off depending on how much power they draw? I don't know. Anyway, now the fan doesn't work, the water pump doesn't work, and even the battery charge meter which had been reading at 1/3 charge, is now not coming on. So, again, guessing, but I am wondering if either my gel battery has died, or the charging system has failed. Obviously entirely different solutions to those two problems and I am not sure how I would know one vs the other. I do think, in the meantime, that if I plug in to shore power and things work that would confirm my suspicions about what is wrong. Now I just have to find that plug in for shore power which I never use because I never camp with hook ups.