This is the Hobbico LiFe 6.6V 3200mAh 10C Receiver Battery Pack.

Features:

• LiFe (lithium iron phosphate LiFePO4) offers a lightweight, high energy density battery with more power than NiCd and NiMH receiver batteries provide
• Nominal voltage rating of only 6.6V typically does not require a regulator to power receiver and servos
• Three discharge leads:
• Two with Universal Receiver Plugs with 22AWG 5.1" (130mm) long wire these are for models with dual power switches, regulators with redundant inputs, redundant radio systems, or for applications that draw more current than a single plug can safely deliver
• One Discharge Lead with Deans Ultra Female Plug 14AWG 5.1" (130mm) for voltage regulators, power distribution boxes and applications drawing more than 10 amps

Includes:

• Hobbico LiFe 6.6V 3200mAh 10C Receiver Battery Pack with one Charge Lead and three Discharge Leads

Requires:

• Charger such as the Hobbico LiFeSource AC/DC Balancing Charger (HCAM6375)
• (only use chargers that specifically say they are compatible with LiFe cells)

Specifications:

• Capacity: 3200mAh
• Number of Cells in Series: 2
• Rated Voltage: 6.6V
• Continuous Discharge Rate: 10C (32 amps)
• Maximum Recommended Charge Current: 2C (6.4 amps)
• Charge Lead: 24 AWG, 1.2" (30mm) long wire w/ElectriFly Balance Connector
• Dimensions: 2.0 x 0.78 x 3.4" (50 x 20 x 87mm)
• Weight: 182g (6.4oz) including all plugs and wires