Great Planes Lipo 3S 11.1V 300 20C Comp BP RC Airplane FEATURES: Balancing allows all cells to fully Charge to 4.2V ensuring maximum power from the pack, plus conditions the cells INCLUDES: Great Planes ElectriFly BP Series Lithium Polymer 300mAh 11.1V 20C Balance Battery Pack with 20AWG 0.79 15-20mm long Discharge wire REQUIRES: Great Planes Equinox Cell Balancer (GPMM3160) or equivalent or Charger with balancing capability