This is the DuraTrax LiPo 7.4V 1800mAh 30C Hard Case Mini Battery Pack with 3.5mm Bullets. FEATURES: For use in the DuraTrax Vendetta, Mini Quake, Cliff Climber and other 1/16 to 1/18 scale vehicles INCLUDES: DuraTrax LiPo 7.4V 1800mAh 30C Hard Case Battery Pack with 3.5 male bullets to make battery lead REQUIRES: Balancer such as the Team Checkpoint Balancer, and 2S 3.5mm Adapter SPECS: Capacity: 1800mAh Number of Cells in Series: 2 Rated Voltage: 7.4V Continuous Discharge Rate: 30C Maximum Recommended Charge Current: 1C (1.8 amps) Center Charge Terminal: 2mm Female Bullet Discharge Terminals: 3.5mm Female Bullets Pack Dimensions: 3.5 x 1.3 x 0.7" (88 x 32 x 19mm) Weight: 3.4oz (96g) COMMENTS: Optional Battery Leads;