$57.99 Amazon.com: Kratax Rechargeable AA Lithium Batteries 4 Pack 1.5V High-Capacity 3500mWh Li-ion AA 
Kratax USB Rechargeable AA Batteries, 4Pcs 1.5v 3300mWh Lithium Batteries AA, 2H Fast Full 
Kratax 1.5V Rechargeable AA AAA Lithium Batteries Constand over1500 Cycles LOT | eBay
