Introducing the ZX850 Rechargeable Battery – for your power needs on-the-go! With its high capacity, long-lasting charge and fast recharge time, the ZX850 is perfect for any situation. Whether you’re out camping or need an emergency back up at home, this battery has you covered. The powerful Lithium ion cells provide reliable performance in extreme temperatures and won't lose their charge when not in use. Thanks to its compact size and lightweight design, it's easy to take with you anywhere. Plus, with a built-in LED indicator light that shows how much charge remains, you'll never be left guessing if your device will last until the end of the day.