The ProMaster Universal GO! Charger is the perfect tool for charging a digital camera or other small lithium ion battery. Can also be used as a power supply/charger for cell phones, iPhone, iPad, digital music player or other USB powered device. The The GO! has a built-in fuel gauge that let's you know the condition of your battery or the internal power unit with the touch of a button. Charges most digital camera and camcorder batteriesBuilt-in power supply charges batteries with a voltage of up to 7.2/7.4v as many as 5 times while providing extended run time to your USB device Charge your battery or power your USB device from the internal power source, AC power or DC (optional DC cord required) LED power gauge shows remaining charge of your battery or of the internal power source.