Do you routinely find yourself in urgent need to charge your phone without having the necessary free time around an outlet to do it? uNu Electronics’s latest offering, the Ultrapak portable battery pack, promises to fit the bill: It’s capable of storing enough power to recharge your smartphone after just 15 minutes in an outlet.
The Ultrapak’s secret is in its “Ultra-X” charging technology. It safely draws power from a wall outlet approximately 8 times faster than your smartphone can. It takes 1.5 hours to provide a full charge to the Ultrapak’s 10,000 mAh battery, enough juice to fully recharge your phone about 3-4 times. If you’re in a rush, the Ultrapak can soak up enough power to fully recharge your iPhone 5S in just 15 minutes. (It'll still take the usual 1-2 hours for the charge to flow from the Ultrapak to your phone, though.)
Ultrapak device itself contains a smart digital display that lets you know exactly what percentage charge it’s holding and how long you’ll need to leave it plugged in for a full charge. There are two USB outputs to connect your gadgets to – one low amp output for smartphones and a higher 2.1A output for charging larger tablets. There’s even a small backup flashlight built in to the Ultrapak for emergencies.
You can find a 10,000 mAh uNu Ultrapak external battery pack at Amazon.com or direct from myunu.com for $99.99, though the device is backordered until mid-August. A smaller, 3000 mAh version is also available.