This is the Hobbico LiFe 6.6V 1900mAh 2 Cell Battery Pack.

FEATURES: Fits the Futaba 4PK, 6J, and 14SG transmitters
          May also be used as a receiver battery (6J will require HSP82469)
          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
          Universal Receiver Plug with 22AWG 5.1" (130mm) long wire

INCLUDES: Hobbico LiFe 6.6V 1900mAh Receiver Battery Pack with one Charge
            Lead w/ElectriFly Balance Connector and one Discharge Lead

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

SPECS:    Capacity: 1900mAh
          Number of Cells in Series: 2
          Rated Voltage: 6.6V
          Continuous Discharge Rate: 3C (5.7A)
          Maximum Recommended Charge Current: 1C (1.9A)
          Charge Lead: 24 AWG, 1.2" (30mm) long wire w/ElectriFly Balance
            Connector
          Discharge Connector: 22AWG, 5.1" (130mm) long wire w/Universal
            connector
          Dimensions: 3.3 x 1.7 x 0.55" (83 x 44 x 14mm)
          Weight: 3.7oz (106g) including wires

                                                                   jxs 08/17/10
                                                                         ir/jxs
                                                              update JAW 8/9/12
                                                              updt jxs 02/18/13