The new Nitecore Li-Ion battery type 21700 NL2150HPi has a capacity of 5000 mAh and can deliver a continuous discharge current of up to 15 A. Notably, the 2150HPi features both positive and negative terminals on both sides. The battery is protected by a circuit against overvoltage, deep discharge, and short circuits. The 21700 battery is increasingly used in high-performance flashlights to extend burn time. The Nitecore 21700HPi is compatible with the Nitecore i4000R, ML21 Magnetic Light, MC21 Magnetic Charger, and MPB21 Magnetic Power Bank. Package includes: 1 x Nitecore 21700 battery 5000 mAh NL2150HPi 15 A.