The Valken 11.1v 1200mAh Long Stick Type Lipo airsoft battery is a high performance lithium airsoft gun battery. This Lipo battery has no memory effect, and does not require discharging. This stick Lipo battery can hold a charge for months, and features a small Tamiya plug and XH 4-pin charging connector. They fit inside most AK rifle or MP5K battery compartments. We recommend our Valken 2-3 Cell Lipo Balancing Charger with this LiPo battery.