Spektrum RC 3S 30C LiPo Battery Pack with JST Connector. This LiPo battery pack is designed to work with E-flite UMX airplanes requiring a 3S battery. Package includes one LiPo battery pack.
 
Specifications:
Battery Type: LiPo (3.7V per cell)
Battery Voltage: 11.1V (3S)
Capacity: 300mAh
Connector Type: JST-RCY
Discharge Lead Length: 2" (51 mm)
Maximum Charge Rate: 0.9 Amps (3C)
Maximum Discharge Current: 9 Amps
Maximum Discharge Rate: 30C
Length: 1.65" (42 mm)
Height: 0.7" (18 mm)
Width: 0.74" (19 mm)
Weight: 24.5g