Specifications:

Dimensions: 42mm x 23mm x 12mm

Compatibility: For use with PolarStar Fusion Engine / PR-15 Airsoft Rifles

Plug type: JST

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

Specifications: 7.4 V / 350 mAh

Charger: Not Included. Lithium Polymer / Li-Poly Chargers Only (BMS / XH 3-Pin Charging Connector)