Lithium-ion batteries are the highest quality batteries on the market. Why lithium?
Lithium batteries also use the same space as their counterparts, but offer more capacity. With all these benefits, lithium batteries will pay for themselves in the long-run and are much less of a hassle that lead-acid batteries.
Lithium is best for dedicated RV users who spend a lot of time camping and using many appliances in their RV. Lithium batteries are great for heavy, long use and won't need to be replaced for many years. Lithium guarantees you'll get the most out of your RV with the least hassle and stress. Lithium is great for those looking to go boondocking, because you're out on your own and you need reliable, long lasting batteries to get through your trip.
Lithium is also great for those who don't want to spend the time and energy to maintain and monitor lead-acid batteries. Despite their high up-front cost, lithium batteries are actually cheaper than lead-acid batteries over the course of their lifespan, because they last so much longer.
AGM batteries are sealed lead-acid batteries that require no maintenance. AGM batteries are sealed, which means they will not leak battery acid and do not require the regular upkeep of lead-acid batteries. AGM batteries costs are mid-range and they will last longer than a regular lead-acid battery.
AGM batteries are great for those who are tired of maintaining their lead-acid batteries, but want to avoid the up-front cost of lithium. AGM batteries are excellent for all types of RVers. They are still as heavy and as bulky as regular lead acid batteries and have a much shorter lifespan than lithium. You also need to be careful about keeping them charged and not draining them too low, because they can breakdown just like lead-acid batteries.
Lead-acid batteries are your typical manufacturer-installed batteries in an RV. They are inexpensive, but require regular maintenance and upkeep. They run the risk of corroding and leaking, and they can breakdown if the charge falls too low. Lead-acid batteries are heavy, take up space, and will require replacement several times over the life of an RV.
Lead-Acid batteries are great for those who are good at maintaining their batteries and want to keep their costs low. RVers who only use their RV at RV parks with shore power and are not interested in boondocking can usually stick with their lead-acid batteries. The life of a lead-acid battery is almost entirely based on how well it is maintained and used. Deep discharging, sporadic maintenance, or frequent and heavy use cause lead-acid batteries to break down very quickly. Don't want to worry about maintenance or want to go on a boondocking adventure? Consider upgrading to AGM or, even better, lithium.