Features: Compact and lightweight, easy to carry. Large capacity allows you to play your toys for a long time. Great battery replacement for your transmitter of toys. Flexible and stable, durable performance. Easy to install and release, very simple to use. Package Including 2 * 7.4V 1500mAh 15C li-ion Battery 2 * USB Battery Charger 1.Packge includes 1pcs 2S 1500mah 20C li-ion battery and 1pcs USB battery Charger. With USB charging cable,you can charge batteries with any household adapter comes with USB port,like mobile phone charger,power bank, laptops,easy to plug in and out,more convenient for usage 2.Battery Type: Li-ion; voltage:7.4V; Cell: 2s;capacity: 1500mAh;rate: 15c;Plug Type: SM Connector and JST-XH 3 pin Connector. Battery Size / Weight(1PCS): 67*37*19mm / 96.26g 3.Advanced 2.