This is the Team Integy 8C 2200mAh 11.1V Lithium Polymer Battery Pack. These batteries must be Charged Only with a charger designed to charge Lithium Polymer batteries which can apply the "Constant Current/Constant Voltage" (CC/CV) charge technique. FEATURES: Fits Futaba, KO and JR brand transmitters taking a 1.1 x 1.14 x 4.1" (28 x 29 x 104mm) size battery Next generation replacement for NiCd, NiMH and Lithium Ion batteries Unique power technology offers high energy density, low weight, long life, safe operation, and environmentally friendly chemistry INCLUDES: Team Integy 8C 2200mAh 11.1V Lithium Polymer Transmitter Battery Pack REQUIRES: LiPo compatible charger and balancer SPECS: Dimensions: 1.1 x 1.14 x 4.1" (28 x 29 x 104mm) COMMENTS: NEVER Charge Lithium Polymer batteries with a charger designed for NiCd, NiMH, or any other type of battery chemistry. Use ONLY the chargers listed under REQUIRES or equivalent substitutes. Never Charge with more than 1C rate Do not Charge at more than 4.2V per cell Do not allow LiPo cells to overheat at any time. Cells which reach greater than 140°F (60°C) will usually become damaged and could catch fire. Do not Charge or Discharge LiPo cells on or near combustible materials including paper, plastic, carpets, vinyl, leather, wood, inside an R/C model or full size automobile. Do not expose LiPo cells to water or moisture at any time. Do not store batteries near an open flame or heater. Do not assemble LiPo cells or pre-assembled packs together with other LiPo cells or packs. Do not leave LiPo battery unattended during Charging or Discharging Always store LiPo batteries in a secure location away from children Always remove a LiPo battery if model is involved in any kind of crash. Carefully inspect the battery and connectors for even the smallest damage. CAUTION: cells may be hot! Do not allow the electrolyte to get into eyes or on skin. Wash affected areas immediately if they come into contact with electrolyte. Do not alter or modify connectors or wires of a Lithium battery pack. jxs 03/07/12 ir/jxs