Pack of 4 High Capacity NiMH Rechargeable AA Batteries
Amazon.com: Tenergy 9V NiMH Battery, High Capacity 250mAh Rechargeable 9 Volt Batteries for Smoke Detector/Alarms, TENS Unit, Metal Detector, and More (4 Pack) : Automotive
2500 mAh NiMH Battery - AA - PRT-00335 - SparkFun Electronics
Battery, Power Cell, 3000mAh (NiMH, 7-C hump, 8.4V) | Traxxas