The iPhone 5’s battery isn’t bad, but you’ll almost certainly need to charge it every day if you use it intensively. Mophie’s Juice Pack Helium is designed to help you avoid that rigmarole, since it sheathes a 1000mAh battery within a sleek, wraparound case.
Handy gadgets: An iPhone case that charges the battery
By Jonathan Bray on May 17, 2013 5:00AM
Clearly, adding an extra battery means increasing the weight and size of your iPhone, but you’ll be surprised by how little bulk the Helium adds to the phone - 72g to the iPhone 5’s 112g weight, 7.4mm to the thickness, 15mm to the height and 5mm to the width.
Usefully, it also includes the ability to charge the iPhone via the micro-USB port on the bottom edge. With both iPhone and Juice Pack fully charged, we started testing at 2.30pm on a Friday afternoon.
After using the phone heavily for 24 hours, we flicked the switch on the back of the Helium and it charged the iPhone from 10% to 77% in around two hours. This gave our iPhone enough power to last until midday on Monday under light use.
The Mophie Juice Pack Helium may be pricey, but three days of battery life isn’t to be sniffed at, and its USB connection means that you can top up your iPhone 5 even when you’ve left your Lightning cable at home.
Product Brief: The Mophie Juice Pack Helium may be pricey, but three days of battery life isn’t to be sniffed at