Includes: (1) Lipo Battery, (4200mAh, 30C). Requires: Charging and installation in your r/c car, buggy or truck. You may be interested in our Balanced Lipo Charger here. Specifications: 2S 7.4V 4200 Dark Blue Rubber / Plastic hard case. Weight: 8.29oz, or 235 grams. Height: 0.92", or 23.3mm. Length: 1.84", or 46.8mm. Width: 5.43", or 47.8mm.