This is an optional E-flite 800mAh 2S Li-Poly 30C Battery Pack w/JST Connector. This battery fits the CX family of helicopters.
Specifications:
Battery Type: LiPo
Capacity: 800mAh
Voltage: 7.4V
Length: 2.75 in (70mm)
Width: 1.00 in (25mm)
Height: 0.50 in (13mm)
Configuration: 2S
Wire Lead AWG: 18
Connector Type: JST
Maximum Continuous Discharge: 30C
