The GP U411+ 4 X R6 2000MAH PRO is an NiMh rechargeable NiMH battery pack, offering 2000 mAh at a voltage of 6V. This battery is ideal for high-drain applications, as it can provide up to 80% capacity even after 500 discharge/recharge cycles. This pack is wired in series for a total voltage of 24V and is constructed of high-quality materials. It offers a generous amount of power, making it suitable for a variety of appliances, such as digital cameras, camcorders, MP3 players, and more. It features a low self-discharge rate, so it can hold a charge even when not in use over extended periods of time.