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Anker® Astro 3E 10000mAh Portable High Capacity Dual-Port External Battery Power Bank Backup Charger for iPhone 5, 4S, 4, iPad 4, 3, 2, Mini, iPods (Apple adapters not included), Samsung Galaxy S4, S3, S2, Note 2, HTC One, EVO, Thunderbolt, Incredible, Droid DNA, Motorola ATRIX, Droid; Google Glass, Nexus 4, Nexus 7, Nexus 10, LG Optimus, PS Vita, Nook HD+ (30-pin adapter for Nook HD+ not included), GoPro and More

by Anker
4.6 out of 5 stars  See all reviews (962 customer reviews) More about this product
Price: £74.99
Sale: £25.99 & FREE Delivery in the UK. Details
You Save: £49.00 (65%)
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In stock.
Sold by AnkerDirect and Fulfilled by Amazon. Gift-wrap available.
Want it Wednesday, 23 April? Choose Express delivery at checkout. Details

Technical Details

  • 10000mAh of capacity. Charges all iPhone four to five times, a Galaxy S3 thrice, or an iPad / iPad 2 once.
  • Charges one device at maximum speed or two at 3A total. Android 5V / 3A (max) port charges Android devices and iPhone with iOS 5 or higher at full speed, iPad with iOS 5 or 6 at 1.5A, or iPad with iOS 7 at 1A; Apple 5V / 3A (max) port charges iPhone at full speed or iPad at 1A (Android devices at 0.5A). Note: this product CANNOT charge Samsung or Asus tablets.
  • A lightweight, unassuming solution to life's daily power needs (0.59in thick). LEDs display just how much juice you've got left. Reliable lithium polymer core ensures quality, supplying you with more than 500 charge cycles during the course of its life.
  • Input: 5V / 1.5A; Use a 1.5A adapter (not included) for fastest charge times (8 hours).
  • Package contents: Anker® Astro 3E External Battery, Micro USB wire, travel pouch, instruction manual

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Frequently Bought Together

Anker® Astro 3E 10000mAh Portable High Capacity Dual-Port External Battery Power Bank Backup Charger for iPhone 5, 4S, 4, iPad 4, 3, 2, Mini, iPods (Apple adapters not included), Samsung Galaxy S4, S3, S2, Note 2, HTC One, EVO, Thunderbolt, Incredible, Droid DNA, Motorola ATRIX, Droid; Google Glass, Nexus 4, Nexus 7, Nexus 10, LG Optimus, PS Vita, Nook HD+ (30-pin adapter for Nook HD+ not included), GoPro and More + StarTech 6 inch Micro USB Cable - A to Micro B
Price For Both: £28.98

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Product details

  • Product Dimensions: 14.2 x 7.2 x 1.6 cm ; 245 g
  • Boxed-product Weight: 349 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Item model number: AK-79ANS1052-BA
  • ASIN: B0063AAIRG
  • Date first available at Amazon.co.uk: 3 April 2012
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (962 customer reviews)
  • Amazon Bestsellers Rank:

Product Description

About Anker® Astro:
Anker® Astro is a line of portable external batteries designed for our modern mobile age. High capacity power and compact designs make these batteries a reliable power companion on the go.

Popular Compatible Models:

Please Note Astro 3E will not charge devices with input currents lower than 20mAh, including iPod Nano and some Bluetooth and GPS devices

Apple: iPhone 5 4s 4 3g / iPad 4 (Retina display) 3 2 1 / iPad Mini, iPod Touch (Use with your original Apple Lightning to USB cable)
Samsung: Samsung Galaxy S4 S3 S2 S / Galaxy Note 2 / Galaxy Nexus / Ace / Focus / Grand / Reverb / Express / Infuse
Google: Nexus 7 / Nexus 10
HTC: One X, S, V / Sensation XE XL / Droid DNA / First / ThunderBolt / EVO 4G 3D/ Radar 4G / Inspire 4G / Vivid 4G / Wildfire S / Incredible 2 S / Rezound / Desire / Windows Phone 8X
Amazon: / Fire
Nokia: Lumia 920, 720, 620, 520
Sony: Sony Xperia J / Sony Xperia Z / Sony Xperia P / X1 / X10 / X8 / Arc / Neo / Play / Mini
Blackberry: Blackberry Z10 Q10 / Curve / Bold / Tour / Touch / Storm
Motorola: Motorala Droid Razr Maxx Bionic / Triumph / Atrix / Milestone
LG: Nexus 4, Encore / Optimus 4X, 2X, V, S, T, 3D, 7, G Pro, L9 / Motion 4G / Lucid 2 / Spectrum 2 / Touch / Cosmos

Please note Astro3E is not compatible with Asus Tablets and Samsung Tablets

Astro3E Spec:
-- Performance for iPhones: 400%-500% battery life
-- Input: 5V / 1.5A (max)
-- Output: 2x USB 5V / 3A (dual charge @3A total max)
-- Size: 5.6 x 2.8 x 0.6 inch; Weight: 8.5 ounce
-- Input charging time: 8-10h via standard USB or AC adapter (not included)
-- 18 months warranty



Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews
228 of 242 people found the following review helpful
4.0 out of 5 stars Never run out of battery again 18 Sep 2012
Size Name:10000mAh External Battery|Verified Purchase
Anker® Astro3 10000mAh Dual 2A/5V USB Output & 9V/12V DC Output External Battery Pack Charger.

Edit Please note this is for the older version, NOT for the new E version (despite what the Amazon page says). Also I corrected my maths, as pointed out by Ms L Atkins. Thanks for that, I missed out some brackets!

So how many times can you charge your phone? This battery is 70% efficient (nothing is ever 100%). According to their website (ianker.com) use this formula.

Capacity of the External Battery * 70% / Capacity of the Mobile Phone

So for my phone, HTC One V (1500 mAh battery) - (10,000 * 0.7) / 1500 = 4.66, or 4 full charges from 0% to 100% & 1 more charge from 0% to 66%

In testing I achieved 4 full charges from 0% to 100%, & 1 more charge from 0% to 54% before the Astro 3 was totally flat.

It took 2 1/2 hours to fully charge my phone using the S USB slot. It took 3 hours to fully charge my phone using the I USB slot.
(Using the wall charger that came with my phone, it takes 1 1/2 hours to charge my phone from 0% to 100%)

2 USB slots can charge up to 2A (@5V). USB Slot I is for Apple devices, USB Slot S is for Samsung (read Android) devices. Both slots work for any USB device I have tried that is 5V.
This also has a DC out slot that is switchable between 9V & 12V.

Your device will only draw UP TO the Amps that it is designed for. In other words if your wall charger is 1A 5V, it is ok to use this external battery, your device will only draw 1A. The external battery itself can supply up to 2A depending on your device, just make sure its 5V.

I also tried charging my netbook, an EeePC (1000HE) made by Asus, with an 8400 mAh battery that lasts for around 7 hours.
Read more ›
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7 of 7 people found the following review helpful
By Andrew Kerr VINE VOICE
Size Name:10000mAh External Battery|Verified Purchase
The battery will fully charge an iPhone 5 between 3 and 4 times over, and the double socket is handy for charging two items at once. It charges quickly, with a great current delivery.

I also discovered something slightly irritating in the States on a trip last year, which is that a standard iPad charger, when plugged into a socket with a US adaptor, doesn't appear to draw enough current to charge it. So the Anker charger came in very handy as I could charge that from a socket, and then charge the iPad from the charger until I could buy a US iPad charger for the rest of the trip. I've probably charged and recharged the Astro 3E about 40 times over so far, with no appreciable loss of performance.

It's everso slightly larger than an iPhone 5 (about the size of a Samsung Galaxy 4, I'd say), slightly thicker, and fairly weighty, but gives a tremendous amount of freedom and flexibility when on the road. Great value for money, and recommended.
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3 of 3 people found the following review helpful
4.0 out of 5 stars Superb Portable Charger 17 Feb 2014
By prisrob TOP 100 REVIEWER VINE VOICE
Size Name:10000mAh External Battery
I have several mobile devices and take two to three with me when I travel my iPhone, iPad, and/orkindle. I try to find outlets at airports to plug them in, but so do the rest of the travelers. Each device's battery has a different length of life, my iPad battery runs out more quickly, followed by my iPhone and then my kindle. By carrying all three, I hoped that using them one by one I would have a mobile device for my East to West Coast travels. Now, we have external battery chargers, and they are a life saver.

This zanier battery pack came well packaged, easy to open and encased in a strong plastic case. The battery has an on/off button and also has auto shut off. A blue LED indicates when the battery is turned on. While you are charging your device the LED is on. This battery pack is a very good size, small, light weight, and can be easily placed in a purse or pocket.

This battery charger is ideal for charging a smartphone to a full charge more quickly than others I have used, and my iPad much more slowly. . My iPhone is an older model, and the battery runs out more quickly. I keep this portable power bank with me fully charged to use when my iPhone needs re-charging. This battery uses Lithium Ion battery technology and carries a 10000mAh capacity. I keep this portable power bank in my purse with the charging cable, so that it is convenient for use at any time. The battery pack is white with a green strip on either end, quite attractive. You must provide your own able to fit your mobile devices. Note: I was provided this product to use and review.

Recommended. prisrob 02-17-14
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45 of 53 people found the following review helpful
5.0 out of 5 stars Great product, great price 4 July 2013
By HG
Size Name:10000mAh External Battery
I purchased this for the Glastonbury Featival last week. It charged my iPhone5 5 times and the Anker still had between 25% and 50% charge by the end of the week. Another great feature is the speed it charges your phone, just like its on mains. A must for any festival - especially at this great price
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17 of 20 people found the following review helpful
5.0 out of 5 stars Brilliant 18 Jun 2013
Size Name:10000mAh External Battery|Verified Purchase
Used to power a raspberry pi, camera and hard drive packed in a ice cream box.,runs for about 12 hours on a full charge.
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1 of 1 people found the following review helpful
1.0 out of 5 stars stopped working 16 April 2014
Size Name:10000mAh External Battery|Verified Purchase
After about 10 days from the purchase the device stopped charging... it wouldn't charge itself and couldn't charge anything else.
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1 of 1 people found the following review helpful
5.0 out of 5 stars Performed better than expected! 3 April 2014
By Hiten
Size Name:10000mAh External Battery|Verified Purchase
I was skeptical at how many charges I would get out of this and also how long it would take to charge, but I was proven wrong and this product has saved my phones battery life on train journeys home late in the evening. Would recommend to anyone in need of a portable charger.
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Most Recent Customer Reviews
5.0 out of 5 stars Portable power! Anker Astro 3E 10000
Seems to work really well, giving us the ability to recharge phones & tablet wherever, when travelling. Read more
Published 5 hours ago by Chickabiddy
2.0 out of 5 stars Doesn't seem to want to recharge itself
Used it a three times on Apple iPhone 4S, and accomplished its mission completely. Eventually the unit was depleted of power to about 50% where two, blue lights were lit (no... Read more
Published 3 days ago by bigBlueMango
5.0 out of 5 stars Very happy with my purchase
It's working like a dream. Highly recommend to anyone who is constantly on the go. Very handy. A bit heavier than my previous battery but works so much better.
Published 4 days ago by Olga Grinchenko
5.0 out of 5 stars The best £25 I've spent in a long time - I recommend this product.
I was planning a week long cycling trip in France. I'm a bit of a noob at cycling and don't have all the gear, but i do have an iphone and wanted to use the MotionX GPS software to... Read more
Published 4 days ago by MR SIMON TAYLOR
5.0 out of 5 stars My first ever Anker unit purchased (I now have 3).
I bought this unit for my wife as her iPhone 5 was always running out of power as she runs heavy applications on a daily basis. Read more
Published 6 days ago by Shamit Patel
3.0 out of 5 stars Average
This is merely average, does not charge that fast and always runs out of juice.

DO NOT BUY THIS! BUY THE NEWER MODEL FROM ANKER.
Published 7 days ago by Karan
5.0 out of 5 stars Quality product.
Great item, works a treat when your phone needs charging on the go!
Would deffinatly recommend to anyone who is after a portable charger.
Published 8 days ago by Joshua Braid
4.0 out of 5 stars Battery charger
This charger is great as you can plug two things in it and will charge very quickly has been great to use
Published 9 days ago by bertie ahwan
5.0 out of 5 stars Very happy
I'm very happy with the Anker Portable High Capacity Dual-Port External Battery as well as with the supplier. Highly recommended! :)
Published 10 days ago by Ania Hunter
5.0 out of 5 stars great product for travelling
excellent service,good price and prompt arrival and well packed.would recommend to people travelling or kids on the move without parents to keep electronics charged for peace of... Read more
Published 11 days ago by Arnold Hugh Thomas
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