The Valken 11.1v 2000mAh Triple Split Type Lipo airsoft battery is a high performance lithium airsoft gun battery. This lithium battery has an initial burst discharge rate of 25C, and a constant discharge rate of 15C. This nunchuck Lipo battery has no memory effect, and does not require discharging. This butterfly Lipo battery can hold a charge for months, and features a small Tamiya plug and XH 4-pin charging connector. They fit inside most crane stocks.