This is the Venom 5000mah 2S 7.4v Sport Hardcase Lipo Battery - Uni Plug.

Specifications:

Battery Type: Lithium Polymer (LiPo Battery)

C Rate: 50C

Volts: 7.4

Capacity: 5000mAh

Cell Count: 2S

Cell Configuration: 2S1P

Continuous Discharge: 50C (250A)

Max Burst Rate: 100C (500A)

Max Volts per Cell: 4.2V

Max Volts per Pack: 8.4V

Min Volts per Pack: 6V

Charge Rate: 1C (5A)

Max Approved Charge Rate: 5C (25A)

Wire Gauge: 12 AWG Soft and Flexible Low Resistance Silicone Wire

Plug Type: UNI 2.0 Plug: Compatible with Traxxas Legacy, Deans/T-Style, EC3 and XT60

Dimensions: 138 x 47 x 23 mm / 5.43 x 1.85 x 0.91 in

Watt Hours: 37

Weight: 9.9 oz (282 g)