E-flite 7.4V 800mAh 2-Cell LiPo- Standard replacement battery for the E-flite Blade CX2 and CX3 helicopters.  Has many other applications as well.  Comes with red two pin JST (BEC) style discharge connector and a JST XH (E-flite, Align, Electrifly) balance plug.

EFLB0990

• Type: Li-Po
• Capacity: 800mAh
• Voltage: 7.4V (nominal)
• Connector Type: JST (BEC) for discharge
• Wire Gauge: 20AWG
• Number of Cells: 2 series
• Weight: 1.5 oz
• Dimensions (WxLxH): .95 x 2.75 x .50
• Application: E-flite Blade CX (EFLH1200)
• Maximum Continuous Discharge : 10C
• Maximum Burst Discharge : 12.5C
• Maximum Continuous Current : 8A
• Charge Protection Circuitry: Yes