HU016-V4 is part of Excel Cell Electronic's (ECE) series of high-capacity rechargeable NiMH battery packs. The HU016-V4 is a 16-cell, AA size, high-capacity NiMH battery pack with a nominal voltage of 12.8V, a capacity of 18Ah, and an internal chamber with a diameter of 25.8mm. The battery pack is optimized for use in high-drain devices, providing long run times and reliable performance. It features an integrated safety circuit and is compatible with overcharge, short circuit, over discharge, and thermal protection circuits. The HU016-V4 is designed for high-end applications such as power tools, medical equipments, toys and security systems.