Amazon.com: ICR18500 Rechargeable Li-Ion Batteries 3.7V 1400mah with Flat Top for Flashlight,Solar Garden Light(4pc)(They are Not AA,AAA Size Batteries) : Health & Household
Basics AA HighCapacity NiMH Rechargeable Batteries 2400 mAh Precharged Pack of 8 - Newegg.com