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  • Anker 2nd Gen Astro E3 10000mAh Portable Charger  External Battery Power Bank with PowerIQ Technology for iPhone 6 Plus 5S 5C 5 4S, iPad Air 2 Mini 3, Samsung Galaxy S6 S5 S4 Note Tab, Nexus, HTC, Motorola, Nokia, PS Vita, Gopro, more Phones and Tablets ()
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Anker 2nd Gen Astro E3 10000mAh Portable Charger External Battery Power Bank with PowerIQ Technology for iPhone 6 Plus 5S 5C 5 4S, iPad Air 2 Mini 3, Samsung Galaxy S6 S5 S4 Note Tab, Nexus, HTC, Motorola, Nokia, PS Vita, Gopro, more Phones and Tablets ()

by Anker
1,716 customer reviews
| 100 answered questions

Price: £24.99
Sale: £17.99 & FREE Delivery in the UK on orders over £20. Details
You Save: £7.00 (28%)
In stock.
Sold by AnkerDirect and Fulfilled by Amazon. Gift-wrap available.
2 new from £17.99
10000mAh 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.
  • 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 Portable Charger External Battery Power Bank, Micro USB cable, travel pouch, welcome guide, our fan-favorite 18-month warranty and friendly customer service.
£17.99 & FREE Delivery in the UK on orders over £20. Details In stock. Sold by AnkerDirect and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • Anker 2nd Gen Astro E3 10000mAh Portable Charger  External Battery Power Bank with PowerIQ Technology for iPhone 6 Plus 5S 5C 5 4S, iPad Air 2 Mini 3, Samsung Galaxy S6 S5 S4 Note Tab, Nexus, HTC, Motorola, Nokia, PS Vita, Gopro, more Phones and Tablets ()
  • +
  • iZKA® - Premium UK Micro USB Mains Charger Power Supply For Anker Astro E3 10000mAh / E4 13000mAh / E5 15000mAh Portable Power Bank - (AC 1A / 1000mAh)
Total price: £22.19
Buy the selected items together

Special Offers and Product Promotions

Colour Name: 10000mAh Black
  • Save £20 on Amazon.co.uk with the aqua Classic card. Get an initial credit line of £250-£1,200 and build your credit rating. Representative 32.9% APR (variable). Subject to term and conditions. Learn more.

Product details

Colour Name: 10000mAh Black
  • Product Dimensions: 13.7 x 6.7 x 1.7 cm ; 231 g
  • Boxed-product Weight: 340 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-A1206012
  • ASIN: B0063AAIRG
  • Date first available at Amazon.co.uk: 3 April 2012
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (1,716 customer reviews)
  • Amazon Bestsellers Rank:

Product Description

Colour Name: 10000mAh 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 Astro E3 Portable Charger External Battery Power Bank
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, Dell Venue 11 Pro, Asus tablets and some GPS and Bluetooth devices.
• Do not try to recharge the Astro E3 while it's charging a device, as this may reduce the battery's lifespan.


Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

9 of 9 people found the following review helpful By Daniele Bonaldo on 24 July 2014
Colour Name: 10000mAh Black Verified Purchase
I'm very satisfied about this external battery.
It is very handy during conferences or when I'm moving a lot during the day and I don't have the chance to connect my smartphone to a power source.
The 10000 mAh capacity is enough for at least 4 charges of my Nexus 5 and the output (3000 mA) is very fast: it is easily possible to use the smartphone with highly consuming applications, such as GPS navigation, and still charging it using this battery.
I highly recommend it.
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263 of 281 people found the following review helpful By Ssscrudddy on 18 Sept. 2012
Colour Name: 10000mAh Black 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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2 of 2 people found the following review helpful By Neil on 12 April 2015
Colour Name: 10000mAh Black Verified Purchase
Have used this portable battery pack to get multiple mobile phone recharges during a day (I get just over 3 charges of my Nexus 5, including some use of my phone while its plugged in and charging)

I've previously owned one other small portable battery pack that was one of the lipstick-shape that didn't fully charge my Nexus 5 and I couldn't use the phones GPS / Web while charging because the battery pack wasn't capable of delivering that much power with the phone screen on. I decided I needed better quality and purchased the Anker 2nd Gen Astro E3 10000mAh battery pack.

The Anker battery pack is in a whole new league. It charges effortlessly, even while I use the phone. (If you use the GPS on your phone a lot, this battery pack is a great companion)

I originally purchased the 10000mAh model thinking that it would feel comparable in size and weight to a 5" display mobile phone (e.g. Nexus 5, iPhone 6). It's actually thicker than I expected and you can definitely feel the weight more so than a mobile phone although its not overly heavy, and it turned out that this is the size that I really needed. I think that if you're going to the effort of carrying an extra battery pack, its worthwhile to get a decent sized battery - I now know I can confidently go more than a day of very heavy mobile phone use when I have this battery pack around.

My first day of really using the 2nd Gen Astro E3 went something like this:

- Use my Nexus 5 mobile phone all morning on my long commute, with web & GPS, on way to a conference and arrive with 15% low battery warning.
- Plug phone into Anker to charge during first conference session.
- Mid-morning break, my phone fully charged.
Read more ›
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5 of 5 people found the following review helpful By Anthony Fairthorne on 31 Dec. 2014
Colour Name: 10000mAh Black Verified Purchase
Item is described as 10000ma and is labeled as such too but from testing its capacity is less than 5000 so its going straight back!
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1 of 1 people found the following review helpful By prisrob TOP 50 REVIEWERVINE VOICE on 4 Feb. 2014
Colour Name: 10000mAh Black
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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