Features: 
1) High capacity 8.4V 3,500mAh nickel metal hydride R/C battery pack
2) Compatible with all airsoft electric guns: MP5SD5, G3SD1, M16VN, FAMASF1,
    M1AI, KNIGHTS SR16, MP5A4, G3A3, AK47, ASSV, and PSG1 
3) Compatible with multiple R/C cars 
4) Made with 7 x SC 3,500mAh high capacity and high power Ni-MH batteries 
5) Advanced Ni-MH battery technology, no battery memory effect
6) Easy operation, battery can be charged anytime without the need to fully 
    discharge
7) Built in standard Tamiya connector
8) Specially designed for airsoft guns for power intensity and long running time
9) High maximum 30A discharge rate for fast vehicle start and maneuvers
10) Longer running time and easy operation than original Ni-Cd battery pack

Specifications:
1) Voltage: 8.4V 
2) Capacity: 3,000mAh
3) Max. discharge rate: 30A 
4) Connector type: standard Tamiya
5) Dimensions (H x W x L): 1.9" x 1.0" x 5.9" 
6) Weight: 14.5oz.