Gens ace 25C 1300mAh 2S1P 7.4V 2X airsoft gun battery with Tamiya Plug；CRANE STOCK Fits AEG, M4/M16/HK416 and more Specification: - Capacity: 1300mAh - Voltage: 7.4V - Discharge Rate: 25C - Connector: Tamiya - Dimensions: 122x20x5mm - Weight: 63g TIPS: 1. Require a Li-Po Charger (NOT include) 2. Before purchasing make sure that the battery is suitable for your airsoft gun Our Advantage: 1.Your orders will be dispatched via FedEx or UPS from the USA directly. 2.Fast shipping and excellent local after-sale service guaranteed in the USA. 3.Service-priority in the online shop, like the long warranty period and the lower price. 4.Energy Density:Specially adapted to each UAV type and RC car/boat/heli type. Very High according to capacity/weight. In fact, we are specialists in High Power Lipo Batteries. It is our unique technology, the highest power of our battery is 100C. Another technology is our batteries are able to be stably discharged simultaneously 5.Low IR: Provides stable voltage until the end of your mission 6.Safety: Gens Ace and its' partners fulfill the ISO9001, ISO14001, standards 7.See the battery instruction to the link: Lipo Battery Guide ⚠WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.