Amazon.com: HiMASSi 24V 200Ah Rechargeable Deep Cycle Lithium Ion Battery, Built-in 200A BMS, 24 Volt LiFePO4 Battery for Solar Power System, RV, Camper, Marine, Overland Van, Caravan, Home, Off Grid : Automotive
Kobalt 24-V Lithium Battery (4 Ah) in the Power Tool Batteries & Chargers department at Lowes.com