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 Ni-MH large type battery with only half of the size and a third of the battery cells. * High capacity: 1600mah * Mini Tamiya connector * Dimension: 87mm x 35mm x 14mm * Weight: 95g Note: Please read instructions before using!