Ultra-thin and lightweight, the mPowerpad 2 Go solar charger is almost effortless to bring along with you on your outdoor adventures. Its 5 watts solar panel charges fast under the sun, then charges devices as quickly as a wall outlet. Once fully charged, this device can charge your smartphone up to 2 times. Sheathed in a durable case, mPowerpad 2 Go comes with ring holes that attach easily to backpacks and windows. A built-in zippered pocket neatly holds your mobile devices and cables while charging.