Spektrum 6.6V 2200mah 2200 2 cell 2S LIFE Li-FE RX Receiver Battery SPMB2200LFRX 

Specifications:

• Application: Aircraft Receiver, Aircraft Ignition
• Balance Lead Length: 50mm
• Battery Balance Connector: JST_XH
• Battery Voltage: 6.6V
• Capacity: 2200mAh
• Cell Configuration: 2S1P
• Charge Lead Length: 150mm
• Charge Protection Circuitry: No
• Connector Type: EC3
• Hard Case: No
• Height: 21mm
• Length: 70mm
• Maximum Charge Current: 2.20A
• Maximum Charge Rate: 1C
• Maximum Continuous Discharge Current: 44A
• Maximum Continuous Discharge Rate: 20C
• Minimum Discharge Voltage: 5.0 V (2.5 V per cell)
• Normal/Standard Charge Current: 440mA
• Normal/Standard Charge Rate: 0.2C
• Shape: Flat
• Watt Hours: 14.52Wh
• Weight: 132g (4.6 oz)
• Width: 49mm
• Wire Gauge: 16 AWG