This is the Reedy Zapper 7.4V 7400mAh 100C LiPo Battery.                                                                                             FEATURES: For tracks where 7.4V race approved batteries are required, same discharge curve charateristics as the Zapper 7.6V versions                    5mm female bullet connectors for positive (+) and negative (-)  terminals                                                                     2mm terminal for balancing                                                      Flat discharge curve offers more voltage deeper into the race                   Built to ROAR/EFRA/BRCA/IFMAR specs                                             Hard plastic case                                                                                                                                     INCLUDES: Reedy Zapper 7.4V 7400mAh 100C LiPo Battery                                                                                                           REQUIRES: LiPo Charging Bag                                                               LiPo Charger                                                                                                                                          SPECS:    Capacity: 7400mAh                                                               Voltage: 7.4V (2S)                                                              Dimensions: 5.4 x 1.8 x 0.98" (138 x 47 x 25mm)                                 Weight: 11.6oz (329g)                                                           Max Charge Current: 14.8A                                                       Discharge Current: 100C                                                                                                                               COMMENTS: ALWAYS use a LiPo-approved Charger                                              ALWAYS use a LiPo Cell Balancer                                                 NEVER Charge at currents greater than 1C                                        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