Lithium is the most common upgrade an RV owner makes, and for good reason: a LiFePO4 house bank delivers its full rated capacity, charges several times faster, saves weight the axles would rather not carry and lasts through years of full-time travel. It also changes a few things about the rig, which is what these guides are for.
They walk through the decision from the start: whether your converter and alternator can charge lithium, which 12V models fit the battery compartment, how much capacity a weekend or a week off-grid really takes and when a heated battery is worth having. Sizing guides turn an appliance list into a number of amp-hours; installation guides cover mounting, ventilation, disconnects and connecting solar.
Comparison guides put lithium next to the lead-acid and AGM batteries it replaces, in the terms that matter in a camper: usable capacity, weight, charge time and cost over the life of the rig. Start with the complete RV, camper and van guide, then move to the sizing and charging guides for your setup.