The ENERGI 5K+ battery pack is slim, yet has enough juice to triple your phone's battery capacity.buy here
Rechargeable 5,200mAh internal battery
Slim-line design measures only 9/16" in depth.
USB port with embedded Lightning and micro-USB cables for rapid charging on-the-go.
3 Amp circuit charges three devices simultaneously.
Battery Cell: Lithium Ion
Battery Capacity: 5.2k
Output Voltage: 4.75V-5.25V
Output Current: 3A
Battery Charge Time: 6 hours
Dimensions: 14.3mm x 70mm x 142mm
Eli the Computer Guy "Overall, I think this is probably the best battery pack that I've seen." go »
The Gadgeteer "I was thrilled with the way the TYLT ENERGI 5K+ 5200 mAh Battery Pack charged my devices." go »
Tech We Like: "TYLT continues building a reputation of reliable products, with the 5K+ Energi battery pack being a solid product. 8.7/10" go »
Wired: "The Gear We Couldn't Live Without" go »
ChipChick: "For you techies, here's the most convenient portable battery pack we've tested ... It's pretty much as good as it gets." go »
iPhone Life Magazine: "The TYLT ENERGI unit is attractive, slim and just a little bit bigger than an iPhone 5, making it a no brainer to grab and go." go »
The Strand: 5/5 stars - "The TYLT Energi 5K+ is a lifesaver for me." go »
Android Community: "The TYLT Energi+ is easily one of the best battery packs we've tested. It charges device in an appropriate amount of time, and doesn't get bogged down with multiple devices. It's stylish, light as a feather, and is just a great all-around performer." go »
PhoneArena: "Unlike most portable batteries, this one is sporting a considerably smaller frame, making it much more compact to hold and carry along... Overall, we like its compact design and integration of two of the most popular charging cables out there - it's much better than having to rely on our own charging cables via its full-sized USB port." go »
Digital Trends: Digital Trends Best of CES 2014 Award Finalist go »