Mophie Juice Pack Reserve

The Mophie Juice Pack Reserve is an external battery compatible with every generation of iPod and iPhone which allows for on-th-go charging of your Apple device. The Juice Pack Reserve is extremely similar to the Juice Pack Boost: both charge at twice the current of traditional batteries, both offer an improved conversion efficiency and both sport LED indicators/an LED flashlight.

However, the Juice Pack Reserve can only hold a 100mAh charge, as opposed to the Boost's 1500mAh.

The Juice Pack Reserve's advanced battery cell design allows it to charge at twice the current of traditional 500mAh batteries, resulting in ultra fast charging. Its LED indicators provide the Juice Pack Reserve with easy-to-see status indication that disappears when the LEDs are not in use. Additionally, the Juice Pack Reserve's improved conversion efficiency means that more charge gets to your iPod/iPhone (90%) than from traditional chargers which offer only 80% efficiency.