Li-Polymer batteries are the newest available batteries for airsoft and other hobby toys. They are designed as a light weight, high output power source. This 7.4v Li-Po battery can deliver more power than 7.2v Ni-MH large type battery with only half of the size and a third of the battery cells. 

Specifications

Manufacturer: RHAM

Model: 41201

  High performance Lithium Polymer cells

  20c Discharge

  No memory effect

  Small profile fits most Buffer Tube

  Plug type: Small Tamiya

  Charging plug type: BMS / XH 3-Pin Charging Connector