Largest Battery Capacity Power users, rejoice. The Powerpak+ packs a behemoth charge capacity of 13,500 mAh and can store 600% of the average smartphone's battery life. You and your friends will never have a dead or tablet in your hands again. For the Outdoors We designed the Powerpak+ with hiking, camping and backpacking aficionados in mind. With a rugged scratched-resistant exterior and ribbed casing, the Powerpak+ is well protected from its surroundings and built to survive. Make it a Power Hub The PowerPak+ is the perfect powerhouse. Hook up your tablet and smartphone together to the PowerPak+ or help charge up a friends's smartphone alongside yours- there's more than enough power to go around. Compatibility. The Powerpak+ NT135T is compatible with most Apple, Android and Windows Smartphone's, 5V Tablets, goPro, GPS, portable game consoles, etc... * For Apple devices, please use the original Apple Lightning or 30-pin cables. **Some phone/tablet/devices may require a special converter cable to be compatible Battery Specifications. Input: 5V@1.5A Outputs: 5V@2.1A and 5V@1A Dimensions: 4.9 x 2.6 x 1.1 inches. Buy this product and Get Free Shipping on a New Trent PowerPak+ 13500mAh Portable Dual USB Port External Battery Charger/ Power Pack for Smartphones & Tablets for $34.95 at Rakuten.com, a $38 Savings!