Make sure you never miss a once-in-a-lifetime moment with an uncharged battery. A new, battery charger specifically designed for your Olympus Olympus Tough TG-820 digital camera will make it possible to have a freshly charged battery whenever you need it. This LI-50B LI50B battery charger is engineered to meet or exceed OEM specifications and feature the latest battery charging technology, including advanced circuitry and automatic voltage regulation. This battery charger automatically adjusts to power sources between 110 volts and 220 volts, safely allowing the user to charge a battery without worrying about voltage source variations. This battery charger includes a one-year warranty.