$30
Leopard Power 850mAh 75C 3S 11.1V Li-Po Battery for Racing Quads
7.4V 400mAh Li-Po battery for the DM007 SPY Quadcopter
3.7V 700mAh Li-Po Battery for the Mola-3 & Mola-5 Quadcopter
7.4V 1200mAh Li-Po battery for the Tarantula X6 Quadcopter