The Recharge-It-All Universal Battery lets you keep your collection of battery chargers and replacement AA batteries home for good! Zap! is a renewable, on-the-go power source for your mobile electronic devices. With a USB cable and 8 cell/media power tips, it can power or charge most cell phones, cameras, or other electronic gadgets regardless of what battery they use. And with its own 4 rechargeable AA batteries, you don't even need an AC outlet to charge your devices when you're on the road. Use them also to continuously resupply any AA device.