The battery is implanted with G-Tech chip and can be automatically identified, communicated and charged with the G-Tech Eco Smart Charger, and can also be regularly charged with a normal charger. The hardcase of this 5300mah 2S 7.4V LiPo battery provides your batteries very solid protection. The battery comes with an equipped Deans plug. They are your ideal chooses for the RC car hobby. Features - Quickly Recharged, 5C fast charge capable. - Up to 200Wh/kg energy density. - Production in the most strict single cell capacity, voltage, resistance, discharge curve matching process. Superior Japan and Korea Lithium - Polymer raw materials. - Local after-sales service. (located in Livermore, CA) Specifications - Minimum Capacity: 5300mAh - Configuration: 2S / 7.4V / 2Cells - Discharge Rate: 100C - Net Weight(±20g): 288g - Dimensions: 138mm Length x 46mm Width x 24mm Height - Charge Plug: G-Tech-3P - Discharge Plug: EC5