24V 4.4KWh battery is designed around NEW LiFePO4 cells and manufactured in the USA. This Replacement Battery Pack is an extreme upgrade to any Lead-Acid battery system in your RV, Golf Cart, Solar, or Off-Grid Power Application. By upgrading to this BigBattery pack, you will have More Capacity, More Power, Faster Charging Capabilities, Lighter Payloads, Longer Cycle-Life and the lowest carbon footprint. These batteries are designed to last up to (10) years with Zero Maintenance Required. In both short and long-term, we guarantee that you will see and feel the LiFePO4 difference!