Lithium Ion battery 12V 12Ah - PowerBrick : High performance LiFe battery
Amazon.com: Nermak 2 Pack 12V 12Ah LiFePO4 Deep Cycle Battery, 2000+ Cycles Lithium Iron Phosphate Rechargeable Battery for Solar Power,UPS,Lighting, Power Wheels, Fish Finder, Scooters and More, Built-in 12A BMS : Automotive