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  • Anker 2nd Gen Astro2 9600mAh 2-Port 3A Portable Charger  External Battery Power Bank with PowerIQ Technology for iPhone, iPad, Samsung, Nexus and More (Black)
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Anker 2nd Gen Astro2 9600mAh 2-Port 3A Portable Charger External Battery Power Bank with PowerIQ Technology for iPhone, iPad, Samsung, Nexus and More (Black)

by Anker
1,159 customer reviews
| 139 answered questions

Price: $79.99
Sale: $29.99 & FREE Shipping on orders over $35. Details
You Save: $50.00 (63%)
In Stock.
Sold by AnkerDirect and Fulfilled by Amazon. Gift-wrap available.
Black
  • The Anker Advantage: Join the 10 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 per port or through two ports.
  • Ultra-High Capacity: Charges the iPad mini one and a half times, the Galaxy S5 two and a half times, the iPhone 6 almost four times and other smartphones multiple times. Recharges in 7-8 hours with 1.2 amp adapter (not included) and the included Micro USB cable.
  • Superior Quality: Premium LG cells, cutting-edge circuitry and a sturdy drop-tested exterior ensure durability and safety. Shake to start a charge or check the power level.
  • What You Get: Anker 2nd Generation Astro2 Portable Charger External Battery Power Bank, Micro USB cable, travel pouch, welcome guide, our fan-favorite 18-month warranty and friendly customer service.
2 used from $20.45

High-Quality External Battery Packs from AmazonBasics
Safely charge your smartphone or tablet with a portable battery pack from AmazonBasics with power overload protection. Shop now.
$29.99 & FREE Shipping on orders over $35. Details In Stock. Sold by AnkerDirect and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

Anker 2nd Gen Astro2 9600mAh 2-Port 3A Portable Charger  External Battery Power Bank with PowerIQ Technology for iPhone, iPad, Samsung, Nexus and More (Black) + Instapark® 10 Watt Solar Panel Portable Solar Charger with Dual USB Ports for iPhone, iPad & all other USB Compatible Devices
Price for both: $92.69

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Color: Black

Technical Details

Color: Black
  • Size (LWH): 2.56 inches, 4.17 inches, 0.98 inches
  • Weight: 8.8 ounces
  • Battery Type: Lithium Polymer
  See more technical details

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This item: Anker 2nd Gen Astro2 9600mAh 2-Port 3A Portable Charger External Battery Power Bank with PowerIQ Technology for iPhone, iPad, Samsung, Nexus and More (Black)
Customer Rating (1159) (3881) (2219) (3718)
Price $ 29.99 $ 21.99 $ 39.99 $ 39.99
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By AnkerDirect AnkerDirect AnkerDirect AnkerDirect
Color Black Black Black White
Dimensions 0.98 inches x 2.56 inches x 4.17 inches 1.81 inches x 3.78 inches x 0.98 inches 1.02 inches x 4.37 inches x 3.27 inches 0.91 inches x 5.91 inches x 2.44 inches
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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 10 million+ satisfied customers powered by Anker.

2nd Generation Astro2 Portable Charger External Battery Power Bank
Recasting the possibilities of mobile power.

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 5s over four times, large capacity phones like the Galaxy S5 two and a half times or most tablets at least once.

Superior Quality
We use only premium LG cells, together with the most advanced materials and cutting-edge technology, to ensure complete safety.

Ultra Compact
The size of a small wallet. Now upgraded with higher density cells and efficiency 10% above other brands to put more power in the same, slim design.

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, Dell Venue 11 Pro, Asus tablets and some GPS and Bluetooth devices.


Product Details

Color: Black
  • Product Dimensions: 2.6 x 4.2 x 1 inches ; 8.8 ounces
  • Shipping Weight: 8.8 ounces (View shipping rates and policies)
  • ASIN: B00DMWV3EU
  • Item model number: AK-79AN7903S-BA
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (1,159 customer reviews)
  • Amazon Best Sellers Rank: #4,251 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

Color: Black
Length: 6:00 Mins
This review is on Anker Astro 2 second generation 9000 mAh black battery pack. This battery pack is a real powerhouse of energy and in my test results it performed extremely well in supplying a charging current to an iPad 2 and an iPhone 4. It is also designed to allow you to charge two items at the same time. I also tested the battery pack charging and iPad 3 and an iPhone 4 simultaneously. It comes with an Apple 30 pin connector and other accessories that you need to make it more useful. You may need to use your original charging cables for some devices so take them with you if you need them.

It is a great power resource to keep your USB recharged devices operating on those long work or school days or while you are traveling. This battery pack is a powerful source of power and many people like me are power users of their smart phones and tablets and need a battery like this. If you are constantly using your phone or tablet then you know that they will run out of power sometime during the day or evening. If you are not near an AC wall outlet with your charger or in your car with a charger what can you do? It is especially important to have some way to recharge if you are traveling in a plane, in the middle of a school classroom or on a bus or train. In addition many of the newer tablets are real power hungry devices and it takes a lot to recharge them.

Here is a powerful battery pack with two USB ports. It can charge your tablet devices or charge your smart phone and if you want it can do both of them simultaneously. I charged two iPhones at the same time in my testing. One Smart USB output port is rated at 5 VDC and 2.4 Amps and the other one is rated at 5 VDC and 3 Amps. It uses Lithium-Ion battery technology and carries a 9000 mAh capacity.
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41 of 45 people found the following review helpful By H. A. on September 16, 2013
Color: Black Verified Purchase
I have been using my iPhone as a GPS with the Gaia GPS app while I have been in the backcountry, and decided that an external battery was a must for extended trips. I also decided that I wanted a backup battery for our iPad when we travel with our kids. I had a hard time deciding what mAh rating I needed, but wound up deciding to go with 9,000 because it will charge my iPhone 4s six times (the 4s has a 1,432 mAh battery) and my gen 1 iPad nearly twice (5,400 mAh).

After looking at all sorts of batteries and reviews on Amazon I decided to call Anker's customer service number to try to get a recommendation. I wasn't expecting much, but was very pleasantly surprised when I reached a U.S. based customer service representative who was extremely helpful. She discussed the pros and cons of the various models I was considering, and wound up recommending the Astro2. About a week after my purchase I even received a follow-up e-mail from Anker letting me know that they are always available to provide support which just capped off a level of customer service that is rare today.

The battery itself appears to be very well made. It has a nice rubberized coating and comes in a padded mesh bag. The included micro USB cable and 30 pin adapter work well with my iPhone 4s, but those with Lightning devices will have to use their own cable. It is a about the diameter of a pack of cards but a little thicker, and has no buttons. The led charge indicator is not visible unless you shake the battery to wake it up, and is in the form of a segmented ring. All in all I like the design very much.

I would recommend this to someone with needs similar to mine, or would recommend other Anker models to those with different external battery needs based upon the quality of the products as well as customer support.
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12 of 14 people found the following review helpful By Scotty on November 19, 2013
Color: Black Verified Purchase
If you work or live in a storm prone area in the United States and lose power for an extended amount of time you know that having access to portable power is imperative. This little guy puts out power for just about any electronic device you can throw at it. We have many devices from different brands and all charge up without issue. Simple and easy to use. Instructions on how to us are cut and dry. Its small form factor is great to put in a "bug out bag" or just to keep in the desk for those unexpected power outages. The fact that you can charge two devices at once is plus. A very solid built product at a price that is good on the pocket book.
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8 of 9 people found the following review helpful By mike on January 8, 2014
Color: Black Verified Purchase
other than any slight movement of the charger turns it on its a fine product, but to travel with or just sitting on the table its fine, UNLESS YOU MOVE IT, THEN IT AUTOMATICALLY TURNS IT`S SELF ON, not sure why this feature was put into a charger, but i would rather have the option of actually pressing the ON button vs. any slight movement to turn it on...

update, customer service has contacted me and has exchanged via a free new Anker without the sensor motion feature, After their concern on their part in making me happy i was quite surprised at how much they went out of their way to make things right, now if more companies cared enough to actually reach out to their customers like Anker has done,shopping would be so much better, having a company that actually cares means they have a customer for life, NICE JOB CUSTOMER SUPPORT!!!
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7 of 8 people found the following review helpful By Chalice on June 5, 2014
Color: Black
I got this product as a gift last christmas to keep in my purse for Iphone power backup. First Anker worked great for a few charges then died and wouldn't charge. Customer service was great and easy to deal with, promptly sent out a new one and now this one has died even sooner after charging an iphone 5 maybe 3 times. Starting to think these reviews of 5 stars are completely false! This will be my 3rd replacement of this product, hoping it's a charm.
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