Power-Xtra PX725260 - 3.7V 2700 mAh Li-Polymer Battery with PCM(3.0A) - Power Xtra
Amazon.com: Camelion AA 2700mAh High Capacity Rechargeable Battery (12 Pack) AA NiMH Batteries with Battery Storage Case for high Drain Devices,Toys, Shavers, Gaming Controls, Flashlights, Boombox, Microphones : Electronics