This is the Venom 800mah 2S 7.4V 30C FLY Lipo Battery - JST.

Specifications:
Battery Type: Lithium Polymer (LiPo Battery)
C Rate: 30C
Volts: 7.4
Capacity: 800mAh
Cell Count: 2S
Cell Configuration: 2S1P
Continuous Discharge: 30C (24A)
Max Burst Rate: 50C (40A)
Max Volts per Cell: 4.2V
Max Volts per Pack: 8.4V
Min Volts per Pack: 6V
Charge Rate: 1C (0.8A)
Max Approved Charge Rate: 5C (4A)
Wire Gauge: 20 AWG Soft and Flexible Low Resistance Silicone Wire
Plug Type: JST
Dimensions: 69 x 26 x 12.5 mm / 2.7 x 1 x 0.5 in
Watt Hours: 5.92
Weight: 1.5 oz (43.6 g)