Motorola P4000 Universal Portable Power Pack - Retail Packaging - Black (Discontinued by Manufacturer) Power through your day. Charges your device up to 2 times faster than 4W chargers and in just 15 minutes can give you enough juice for up to 2 more hours of talk time. Charges the average smartphone battery up to 2 times and powerful enough to charge your tablet. Rechargeable power for all. Compatible with devices made by Motorola, Apple, Samsung, BlackBerry, HTC, LG, Nokia, Sony, and more. USB charging ensures it will work with all devices.