Product 8.4V 1600mAh NiMH Flat Battery Pack Make Made of 2/3A x 7 cells Connector Mini Tamiya FeMale connector assembled with 16 G wire Fit Models Most Airsoft Mini AK series, upgraded and/or modified AEG's Feature Rapidly charge ande had a long life cycle span Weight 6.5 Oz Dimensions 109.2 mm (Length);37 mm (Width); 20mm (Height) Recommended Charger Smart Universal Battery Pack Charger Use attention Set charging current to 0.9A when chargingwith the above charger