I'm thinking about replacing my battery in the next few weeks. It seems to be working okay, but it is almost 3 years old now. I don't want to take any chances of it failing out in the boon docks. The camper has very little power needs. It just has two LED lights and a furnace, which I rarely if at all use. I also have Solar to keep the battery charged. I only have room for one 12 volt battery. What do you guys recommend, and where do you get the best price?