Lithium-ion rechargeable RV batteries last much longer than any traditional lead acid battery available on the market, they are lighter in weight and have no memory effect. Another thing to note is that there is virtually no self-discharge with lithium-ion RV batteries so if you don’t need it immediately recharging isn’t necessary. They typically provide more power and can last longer. Because they don't discharge gases like lead acid models, lithium ion RVs can be stored virtually anywhere as well.