Skip to: | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

  • Wish List
  • Feedback
  • Help
Search all

Anker® Astro2 Dual USB Output 8400mAh Backup External Battery Pack Charger with built-in Flashlight for all iPhone, iPad, iPod models, Android phones, and other devices ( 2 USB 5V 1A / 2A )

  • all iPhone, iPad, iPod models; Android Smartphones
  • Li-Ion
  • 5 Volt
  • 5V 2A port / 5V 1A port
  • Built-in Flashlight; 2 USB Output 5V 1A / 2A

  • Pin It
  • Email this page
ICON Loading...
  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Anker Astro 2 8400mAh External Battery


Anker Battery

High Capacity

If you're a long-haul power user, our Anker Astro 2 external battery packs deliver four full charges, or add 33 hours of talk time to your iPhone 4S / 4G / 3GS; two to three full charges for Samsung Galaxy S III, or 300% - 400% to most mobile phones' battery life.

Anker Battery


Anker Astro 2 8400mAh external battery is designed to get you powered up, without getting in the way. You can easily put the Anker Astro 2 into your pocket, perfect for long plane flights, road trips, or whenever you need to charge your mobile devices wherever you are.

Anker Battery


Whether you need to charge your smartphone, iPhone, iPad, PSP, netbook, or tablet, we have the right external battery and matching charging tip for you.

Anker Battery


Share the convenience of a portable charge with multiple devices. Simultaneously charge two devices with our Anker Astro 2 dual USB external chargers.


Anker BatteryAnker BatteryAnker BatteryAnker Battery

Learn more about the Anker AK-79UN5V2-B84A

Warranty, Returns, And Additional Information

Customer Reviews of the Anker AK-79UN5V2-B84A

Do you own this product? Write a Review

ICON Loading...

Filter Results

  • Michael B.
  • 11/9/2012 4:00:51 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Everything fits in a small bag. Can charge lots of devices multiple times on a single charge. I travel quite a lot and my phone is an HTC rezound. If I use route guidance with the GPS turned on for one hour my phone battery will be dead. If I'm walking, biking, or cycling a battery pack is an absolute necessity. The Astro 2 is the best one I've ever used.

Cons: Doesn't come with a small AC wall adapter.

Did you find this review helpful? Yes No

Compare Offers from All Sellers

Seller Name & Rating Offer Details  
ICON Loading...

More Buying Options

Are you an E-Blast Insider? Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.
Shop by Region: United States | Canada | China | Taiwan
VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CA Inc500
Policy & Agreement | Privacy Policy  © 2000-2015 Newegg Inc.  All rights reserved.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.