2200mAh 7.4v 2-Cell 25C LiPo Battery TRA2820XFeaturing a large 2200mAh capacity, these lithium polymer batteries are engineered to unlock true on demand power and speed. It will increase radio controlled vehicles running times during long operation. Weighing only 4. 2 ounces, the battery is light enough to be practical, but powerful enough to provide plenty of performance. The battery uses a wide surface gold plated copper terminal to connect with the vehicle, resulting in almost no voltage