TYLT’s Energi is built for MicroUSB devices (such as most Android phones). It weighs just under four ounces and features built-in prongs for wall-charging, a built-in MicroUSB cable for charging your device on the go, and a female USB port, so you’ll still be able to charge non-MicroUSB devices (such as an iPhone), so long as you have a cable handy.
The Energi takes 4 to 5 hours to charge itself, and, according to the company, providingone full charge to a smartphone, one-third of a charge to a 7-inch tablet, and 12 full charges to a Bluetooth device. The Energi does have pass-through charging, which means that you can plug it into the wall and charge the Energi and your smartphone simultaneously.
Weight: 3.8 ounces
Battery Capacity: 1800 mAh
Price: $39.99, TYLT