This is the Venom Li-Power Series 4S 1P 14.8V 2100mAh LiPo Battery.

FEATURES: Balance connector
          Standard connector

INCLUDES: One Venom Li-Power Series 42S 1P 14.8V 2100mAh LiPo Battery

REQUIRES: A charger with balancing capabilities

SPECS:    Length: 4.17"  (106mm)
          Width:  1.34" (34mm)
          Height: 1.22"  (31mm)
          Weight: 8.4oz (238.14g)
          Charge Rate: 2.1A (1C)
          Max Volts Per Cell: 4.2V
          Max Pack Voltage: 16.8V
          Min Discharge Volts: 12V
          Continuous Discharge: 20C (42A)
          Max Burst Rate: 30C (63A)

COMMENTS: READ the ENTIRE instructions printed inside header card before use
          ALWAYS use a LiPo-approved charger
          ALWAYS use a LiPo Cell Balancer
          NEVER Charge over 4.20V per cell
          NEVER Charge at currents greater than 1C
          NEVER Charge through the "To ESC or "DISCHARGE" lead
          NEVER Trickle Charge
          NEVER allow to Discharge below 2.5V per cell
          NEVER disassemble or modify pack wiring in any way or puncture cells
          NEVER place on combustible materials or leave unattended during
            Charging
          ALWAYS charge in a fireproof location
          ALWAYS set charger's output volts to match battery volts
          ALWAYS keep out of reach of children

                                                                    lmm 7/24/09
                                                                         ir/jxs