Amazon.com: 4 x AAA NiMH Rechargeable Batteries (400 mAh) : Health & Household
Tenergy Premium PRO Rechargeable AA and AAA Batteries Combo, High Capacity Low Self-Discharge 2800mah AA and 1100mAh NiMH AAA Battery, 8 Pack, 4 AA and 4 AAA - Tenergy Power
Titanium Innovations Battery Case | 4 x AA or 5 x AAA