Need house batteries & components for your camper van? The heart of a camper van electrical system is the battery bank, and we carry several options for modern lithium RV batteries. Lithium batteries and their associated components (DC/DC chargers, battery switches, battery monitors, charging relays, and the like) are essential equipment for off-grid camper vans. RV batteries like these can sustain heavy loads and be recharged quickly using solar and DC/DC chargers.