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  • Anker® 2nd Gen Astro E3 10000mAh Dual-Port Ultra Compact External Battery Portable USB Charger Power Bank - PowerIQ™ Broad Compatibility, Fast Charging, High Capacity - For iPhone 6 5s 5c 5, iPad Air mini, Galaxy S5 S4, Tab 2, Note 3 4, LG G3, Nexus, HTC One M8, MOTO X, PS Vita and More (Black)
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Anker® 2nd Gen Astro E3 10000mAh Dual-Port Ultra Compact External Battery Portable USB Charger Power Bank - PowerIQ™ Broad Compatibility, Fast Charging, High Capacity - For iPhone 6 5s 5c 5, iPad Air mini, Galaxy S5 S4, Tab 2, Note 3 4, LG G3, Nexus, HTC One M8, MOTO X, PS Vita and More (Black)

by Anker
| 826 answered questions

Price: $79.99
Sale: $25.99 & FREE Shipping on orders over $35. Details
You Save: $54.00 (68%)
In Stock.
Black
  • The Anker® Advantage: Join the 6 million+ powered by Amazon's #1 charging brand.
  • Exclusive PowerIQ™ Technology: Detects your device to deliver its fastest possible charge speed up to 3 amps.
  • Ultra-High Capacity: Charges the iPad Air almost once, the Galaxy S5 two and a half times, the iPhone 5s four and a half times and other smartphones multiple times.
  • Most Compact: Slim, sleek, smartphone-like design featuring a 4-LED power meter. Recharges in 6 hours with a 2 amp adapter (not included) and the included Micro USB cable.
  • What You Get: Anker® Astro E3 External Battery, Micro USB cable, travel pouch, welcome guide, our fan-favorite 18-month warranty and friendly customer service.
5 new from $25.99

Special Offers and Product Promotions

Color: Black
  • Get a $75 Amazon.com Gift Card: Get the Discover it Card and get a $75.00 Amazon.com Gift Card after your first purchase. Learn more.

Frequently Bought Together

Anker® 2nd Gen Astro E3 10000mAh Dual-Port Ultra Compact External Battery Portable USB Charger Power Bank - PowerIQ™ Broad Compatibility, Fast Charging, High Capacity - For iPhone 6 5s 5c 5, iPad Air mini, Galaxy S5 S4, Tab 2, Note 3 4, LG G3, Nexus, HTC One M8, MOTO X, PS Vita and More (Black) + Anker® 2nd Gen Astro E4 13000mAh External Battery Portable Dual USB Charger Power Bank. PowerIQ™ Broad Compatibility, Fast Charging, High Capacity, Ultra Compact. For iPhone 6 5S 5C 5 4S, iPad Air mini, Galaxy S5 S4 S3, Note 3 4, Tab 4 3 2 Pro, Nexus, HTC One, One 2 (M8), LG G3, Nexus, MOTO X and More (Black). + Anker® 40W 5-Port Family-Sized Desktop USB Charger with PowerIQTM Technology for iPhone 6 5s 5c 5; iPad Air mini; Galaxy S5 S4; Note 3 2; the new HTC One (M8); Nexus and More (Black)
Price for all three: $81.97

Buy the selected items together


Technical Details

Color: Black
  • Size (LWH): 5.39 inches, 2.64 inches, 0.65 inches
  • Weight: 8.16 ounces
  • Battery Type: Lithium Polymer
  See more technical details

Product Details

Color: Black
  • Product Dimensions: 5.4 x 2.6 x 0.6 inches ; 8.2 ounces
  • Shipping Weight: 11.8 ounces (View shipping rates and policies)
  • ASIN: B009USAJCC
  • Item model number: AK-79AN7917-BA
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (4,835 customer reviews)
  • Amazon Best Sellers Rank: #106 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
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Product Description

Color: Black

ANKER: Amazon's #1 Charging Brand

• The highest average review rating of any charging brand.
• One in three chargers sold on Amazon is from us.
• Join the 6 million+ satisfied customers powered by Anker.

2nd Generation Astro E3 External Battery
Portable powerpack perfection.

PowerIQ™ Detects your device. Delivers the fastest charge.
Exclusive to Anker, PowerIQ™ amp-adjustment technology intelligently identifies your device to deliver its fastest possible charge.

Ultra-High Capacity
Charge an iPhone over four times, a large capacity phone like the Galaxy S5 two and a half times or most tablets at least once.

Most Compact
The size and feel of a smartphone. The E3 is unobtrusive, lightweight and the most compact among batteries of this capacity.

Premium Performance
Industry grade materials, premium circuitry and a 92% efficient battery cell (up to 10% above the industry average) ensure complete reliability.

World Famous Warranty
At Anker, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support.

For Optimal Use:
• Use the included cable, your original cable or a third-party certified one (such as MFi).
• Compatible with Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices except for the iPod nano, iPod Classic, HP TouchPad, LG G2, Asus and some GPS and Bluetooth devices.


Customer Questions & Answers

Customer Reviews

4.6 out of 5 stars
5 star
3,727
4 star
764
3 star
127
2 star
67
1 star
150
See all 4,835 customer reviews
I really think that this product deserves more than five(5) stars.
Lawrence Evans
I love it, it's so convenient to be able to charge my phone on the go and not worry about needing an outlet.
ngvaynshtok
And this anker battery thing just works well. charges my phone fast, and keeps a charge a long time.
Jan

Most Helpful Customer Reviews

1,312 of 1,358 people found the following review helpful By Kit Parenteau on May 27, 2013
Color Name: Black Verified Purchase
REVIEWER'S NOTE:
AnkerDirect or Anker or Amazon has changed the product on this ASIN to a "2nd Gen" version. Several of the specifications no longer match this review and some other reviews. I am performing quick diligence to alert readers here and I will point out things that have changed in line below. Please take extra care with this product related to my review as I have not yet had a chance to review the new product directly. I strongly recommend that you check at least a handful of reviews in chronological order (newest reviews first) for some updated insights. Most of the information in this review continues to be relevant, which is why the review is left intact. Look for //--Changes--\\ to this review based on what I know so far.

Pull out your big-pockets and don't expect something light, but plenty of power is in this package.
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379 of 413 people found the following review helpful By Paul Renwick on November 28, 2012
Color Name: Black Verified Purchase
For those readers that are reading this review on the Item page, this review is for the Astro3E 10000mAh charger. Since Amazon mixes reviews with all different "variants" of a product, and this comes in multiple capacities, this makes it hard to separate reviews.

This product does what it advertises, and does it VERY well. It comes with a nice mesh case which I carry it in constantly, and a nice little coiled USB cord with a few tips. While these aren't compatible with every device I own, I use it mainly to charge my phone, which is MicroUSB and included.

Some devices I have tried charging:
- I own a Motorola Droid 4, and I have charged the phone from dead to full over 4 times on a single charge. Android and Apple ports work, but on the Android port, the Droid 4 actually charges FASTER than the stock plug-in charger. My phone does not seem to mind.
- An LG Ally charges on either port, but faster on the Android port.
- A Nintendo DS Lite (with a compatible USB cord) charges on either port.
- An iPod Nano 6th Generation charges on the Apple port. It does not respond on the Android port. I have charged this device from dead to full, and did lose enough capacity on the battery for it to register.

I will update this review with more results as I charge more devices. I'm going on a few flights in the next couple of months, so this charger will gets LOTS of use.
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75 of 81 people found the following review helpful By Donna NaQuin on September 10, 2013
Color Name: Black Verified Purchase
I purchased this item about 8 months ago. for my cell phone. I LOVED it. It would charge my phone 4 or 5 times without needing a charge. All of a sudden a month or so ago, it won't even give me 1 charge. After plugging in the phone and pressing the button, all 4 lights light up, then I get about 25% charge and it's dead.. press the button, no lights. I just contacted Anker and left comment. I hope they have a solution. If they do, I'll give it 5 stars.
update 03.02.14: sorry I didn't update sooner. I emailed Anker and told them about the problem. They emailed me right away, asked for the model# and my address. They sent me another charger and didn't make me go to the post office and pay to return the old one. Then they emailed me a week or so later to make sure I got it and to see if it was working properly. I emailed them back thanking them for their awesome c.s. and told them that it's working great. I get 2 or 3 charges on my tablet or several on my phone with 1 charge. I not only would do business with Anker again, but I highly recommend them, their products and their c.s. is 2nd to none.
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299 of 373 people found the following review helpful By Christopher E. Robison on December 6, 2012
Color Name: Black Verified Purchase
I don't actually like giving 5-star reviews, and on this one I hovered over 4 stars thinking to myself, well ... what's actually wrong with it? What can I deduct a star for? It doesn't actually charge itself magically from the luminiferous ether, it doesn't fly or bake cookies, and it definitely doesn't impress the ladies. Maybe they'll work these features in.

I've just received it and used it a couple times, so maybe I'll find a serious problem with it in the future. But for now, I'm really impressed with the apparent quality and functionality of the device. I can't really find anything serious to complain about.

Make no mistake, this thing is not subtle. It's bigger and heavier than my Galaxy SII (a fairly large-screen phone), though the dimensions are comparable with the phone when my rubber case is on it. It's massive, like a plate of armor or a piece of a big stone tile, and feels nearly as dense and solid. At 37Wh of capacity and up to 3A of current, the size and mass is definitely justified though, and it's obvious that they didn't waste any internal volume with hollow spaces in the enclosure. It hangs heavy in your pocket, but then we knew that was the deal before we bought a 10 amp-hour auxiliary battery, didn't we?

As an aside, this is the kind of thing that seems to deserve its own new kind of clothing to carry and conceal it. Since it's mainly going to be tech geeks who are interested in carrying around so much gadget fuel, and nerds like me tend to have a pretty substantial anterior pelvic tilt from sitting in front of computers all the time, maybe there's a market for some kind of garment that will hide a device like this in the curvature of the lower back, providing an "outlet" through your clothing somewhere around the belt.
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