12V BOAT BATTERY NO FURTHER A MYSTERY

No, I do not need a 12 V battery anywhere. There's an outlet on the skin on the camper that looks like I am able to plug into one hundred ten…and several plugs inside for whichever…A high quality BMS with an entire security profile is essential with the RV lithium batteries. A good BMS stops charging in possibly harming situations.LiTime’s 12