The standard battery pack is 8 x 6V 230Ah AGM, deep-cycle maintenance-free batteries. Most customers upgrade to the optional 8 x 48V 30Ah LiFePO4 lithium pack — the higher voltage delivers more usable power alongside faster opportunity charging. The LifePO4 batteries are warrantied for 5 years and can charge cycle for 4,000+ times. Read our blog post on Lithium batteries for more information.