Rechargeable USB Portable Backup Battery Pack

A portable power Boost wherever you go

Get a power boost! Boost8400 from Et³n is a powerful backup battery pack with an 8400mAh lithium ion battery that provides long-lasting reliable power whenever and wherever you need it. Fast and efficient, when fully charged Boost8400 fully charges most smartphones four times -- and it also charges tablets -- so you're never caught powerless.

Sleek and lightweight

With its sleek and elegant design, Boost8400 fits in the palm of your hand. Boost8400 features a Micro-USB DC input to use with most smartphone chargers or computers. It packs enough power to charge tablets and smartphones. With two standard USB ports, Boost8400 can charge two devices simultaneously.

An LED charge indicator enables you to monitor the battery charge level when you give it a quick shake. Whether you're traveling for work, for pleasure, or just around town, let Boost8400 provide the power you need to stay fully charged wherever you are.

Features

• Backup Battery pack with rechargeable 8400mAh lithium ion battery
• Fully charges most smartphones two times when fully charged
• Dual USB output to simultaneously charge two devices with a combined output current of 5V=2.1A
• LED battery charge indicator
• Shake unit to check battery level
• Micro-USB DC input for use with smart phone chargers (iPhone block, etc.)

Features	Boost Turbine 2000	Boost Turbine 4000	Boost Turbine 4200	Boost Turbine 8400
Battery Capacity	2000 mAh	4000 mAh	4200 mAh	Lithium
Battery Type	Lithium	Lithium	Lithium	Lithium
Charges Tablets	No	Yes	Yes	Yes
Emergency Crank Power	Yes	Yes	No	No
Dual USB Output	No	No	No	No
Size (in)	5 x 2.2 x 1	5 x 2.2 x 1	5.1 x 2.5 x 1.1	5.1 x 2.7 x 0.6
Weight	7.0 oz	9.0 oz	5.0 oz	7.5 oz