Elite Compact Receiver 2500mAh 2S 6.6V LiFe (HD 50A/20C Max.) Battery Pack comes with comes battery tray holder equipped with anti-vibration isolators and two receiver leads, the first one with JR/Universal and the second 16 gauge high power wire with Multiplex Connector.

More information (links):
* Instruction Manual (pdf.)

Specifications:
Dimensions: 5.5" x 1" x 1 1/8"
(140mm x 25mm x 28mm)
Weight: 6.2 oz. (178g)
Voltage/Capacity: 6.6V/2500mAh

Charge only with Li-Polymer Charger!!!!