7.4V 500mAh Li-Po Battery

For receiver of 1210NCP, 1212 NCP, 3500 NCP, 3502 NCP, RB 1000, RB 1002, 2500 T&B, 2502 T&B, 2600T&B, 2602 T&B, StB Hawk, StB Beep

This battery has a 3-PIN connector and comes with a 2-PIN extender, so that it can be used as a 2-PIN or 3-PIN battery depending on your needs.