We went hands-on with the Major PowerDrive Slim, which combines an external battery with a hard drive, giving you extra storage and extra battery life for your iPhone. There’s 32GB of storage space for storing files, photos and videos, plus a 3,000 mAh battery that translates to nearly a full charge for an iPhone 6 Plus.
Files can be transferred to PowerDrive Slim using the accompanying Powerdrive iOS app, and at the same time, it can charge your iPhone. You’ll need to provide a Lightning cable to transfer files and charge your iPhone from the PowerDrive Slim.
Size-wise, the PowerDrive Slim is thicker than an iPhone 6 Plus, but not as wide or tall, so it fits easily in a pocket. We liked the portability, and we were impressed with the app, especially when it came to the automatic backup feature for photos.
The 32GB PowerDrive Slim can be purchased from Amazon for $59.99. Mazzo sells devices with higher capacities up to 128GB, which will be available for purchase in the near future.
