The Motorola Slim Power Pack 4000 provides universal, pocketable power for your devices when you're on the go. At only 10mm thick, you can pop it in your pack or bag and get instant, portable power wherever you go. Slim brings the power It's got enough juice to charge the average smartphone battery up to 2 times*, it's powerful enough to charge your tablet and it will even power multiple devices simultaneously. Compatibility Compatible with just about any device, the Slim 4000 offers universal charging for Android???-powered devices and more with the attached micro USB cable.