This is the DuraTrax NiMH 7.2V 5000mAh Onyx Stick Battery Pack with Standard Connector. FEATURES: Ideal sport pack for cars, trucks and boats INCLUDES: DuraTrax NiMH 7.2V 5000mAh Onyx Stick Battery with Standard Connector REQUIRES: NiMH compatible charger such as the Duratrax Onyx series SPECS: Capacity: 5000mAh Number of Cells in Series: 6 Rated Voltage: 7.2V Min. Discharge Voltage: 5.4V Maximum Recommended Charge Current: 5 amps Discharge Lead: 14AWG 2.7" (70mm) long wire w/Standard connector Pack Dimensions: 5.3 x 1.8 x 0.94" (135 x 45 x 24mm) Weight: 15.6 oz (442 g) Number of Welds per Connection: 6 spot welds Cell Size: Sub-C jxs 8/17/10 ir/jxs BOX DIMENSIONS: 2.38" W. X 1.13" H. X 6.38" L. BOX WEIGHT: 1.01 LBS.