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Anker® 2nd Gen Astro E3 10000mAh Portable Power Bank External Battery Charger with PowerIQTM Technology for iPhone 5S 5C 5 4S, iPad Air mini, Galaxy S5 S4 S3, Note 3 2, Tab 4 3 2 Pro, Nexus, HTC One, One 2 (M8), Motorola Droid, Moto X, PS Vita, Gopro, and other USB-charged devices

by Anker
4.6 out of 5 stars  See all reviews (1,095 customer reviews) More about this product
Price: £49.99
Sale: £21.99 & FREE Delivery in the UK. Details
You Save: £28.00 (56%)
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In stock.
Sold by AnkerDirect and Fulfilled by Amazon. Gift-wrap available.
Want it tomorrow, 25 July? Choose Express delivery at checkout. Details

Technical Details

  • PowerIQ™ technology maximizes compatibility with Android, Apple or other devices by enabling charge speeds of up to 3 amps overall or 3 amps per port.
  • 10000 mAh of capacity charges an iPhones four+ times or large-capacity phones like the Galaxy S4 more than twice.
  • At only 0.59in thick, it's ideal for grab-n-go use. 4 LEDs display just how much juice you've got left. Reliable lithium polymer core ensures quality and supplies 500+ lifetime charge cycles.
  • Input: 5V / 2A; Use a 2A adapter (not included) for fastest charge times (6 hours).
  • Package contents: Anker® Astro E3 External Battery, accessories, user manual, 18-month hassle-free warranty. (Apple adapters, 30 pin and lightning, Samsung 30-pin adapter not included)

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Frequently Bought Together

Anker® 2nd Gen Astro E3 10000mAh Portable Power Bank External Battery Charger with PowerIQTM Technology for iPhone 5S 5C 5 4S, iPad Air mini, Galaxy S5 S4 S3, Note 3 2, Tab 4 3 2 Pro, Nexus, HTC One, One 2 (M8), Motorola Droid, Moto X, PS Vita, Gopro, and other USB-charged devices + Anker® 25W 5-Port Family-Sized Desktop USB Wall Charger with PowerIQ™ Technology for iPhone 5s 5c 5; iPad Air mini; Galaxy S5 S4; Note 3 2; Tab; Nexus and More
Price For Both: £37.98

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Product details

  • Product Dimensions: 14.2 x 7.1 x 1.5 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 (1,095 customer reviews)
  • Amazon Bestsellers Rank:

Product Description

The next generation Astro E3. Refined to power the mobile, connected life even better.

PowerIQ™: Compatibility maximized.
Not all charging ports are created equal. Standard ports only communicate effectively with particular devices, like Apple OR Android, often limiting their recharge rate. But with PowerIQ™ technology, each port intelligently identifies your device to speak its unique charging language. So plug in any brand or model and enjoy compatibility that doesn't limit your charging speed.

Grab-n-go ready.

With the importance of staying connected ever increasing, eliminate low-battery fear with the grab-n-go Astro E3. Power your iPhone 4+ times, a large-capacity phone like the Galaxy S4 more than twice, or a tablet once (depending on your model).

Simple, reliable power.
Designed to be functional and efficient - nothing else. At 0.59in thin, the E3 comes ready to serve as an unobtrusive, lightweight solution to your daily power needs. And, increasing the new Astro E3's recharge rate from 1.5A to 2A, we've reduced the recharge time 25% to just 6 hours (with a 2A adapter).

For optimal use.
• Compatible with all Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices. The iPod nano, Asus tablets, the LG G2 and some GPS and Bluetooth devices are not supported.
• To ensure complete safety and best performance, we strongly recommend using your device's original cable, a third-party certified cable (such as MFI) or our included cable.
• The included Micro USB cable is compatible with the Samsung Galaxy S5, Note 3 and other Micro USB 3.0 devices. To connect, insert the cable's Micro USB tip into the larger of the two connection ports on your device.


Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews
237 of 253 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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4.0 out of 5 stars Super 17 Feb 2014
By prisrob TOP 50 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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52 of 63 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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1 of 1 people found the following review helpful
5.0 out of 5 stars Comes with a nice protective textile pouch too 19 July 2014
Size Name:10000mAh External Battery|Verified Purchase
I needed something to keep my S4 going as a sat nav on a hire bike with no power outlet. This one is thin for the capacity, chargers itself at up to 2A, runs/charges devices at up to 2A if they need it, thanks to PowerIQ, is more efficient than most and comes with superb Anker build quality. Impressed. Comes with a nice protective textile pouch too.
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1 of 1 people found the following review helpful
4.0 out of 5 stars Great piece of invention 27 Nov 2013
Size Name:10000mAh External Battery
This piece of gadget is an amazing invention but is a little bigger than i have expected. It can charge up to 4 full phone batteries which is incredible.
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5 of 6 people found the following review helpful
5.0 out of 5 stars Loads of charge 30 Aug 2013
Size Name:10000mAh External Battery
I bought this item to use at a festival as I hate loosing my phone to a booth for hours on end while someone else charges it. It stated it held 5 iPhone 5 charges. At the 5 day festival it charged my iPhone 4S 6 times, a friends htc once, an iPhone 5, a lumix camera and I still had one bar by the time I got home!

The downside is that it takes a while to charge, as it charges at half the speed it can charge your phone/item.

Well worth the money for the festival and recommend other people buying one. Buy of the summer.
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51 of 64 people found the following review helpful
3.0 out of 5 stars False advertising - only 7400 mAh at 5v 27 Feb 2013
Size Name:10000mAh External Battery|Verified Purchase
This is a good product, it's not bad value for money, and having bought it I intend to keep it.

It's advertised under false pretences though, and here's why:

This charger operates at 5v (because USB power is 5v). But the batteries inside the device are only 3.7v... and there's some booster circuit inside which boosts that voltage up to 5.

When the manufacturer says 10,000mAh, they mean 10,000mAh at 3.7v. This is confirmed, as they say they use 37Wh of battery. Trouble is, when you have to boost this voltage up, your 'mAh' rating drops by the same amount.

So the device is only really a 7400mAh at 5v unit. The 10,000mAh is pure marketing, because really the customer shouldn't have to know or care about the voltages of the internal batteries!!

It's not bad value for a 7400mAh unit - but buyer beware!
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Most Recent Customer Reviews
5.0 out of 5 stars Tested on both iphone and android phones and is working fine. Battery...
Simply charge the battery and start using it for charging and powering other devices. Tested on both iphone and android phones and is working fine. Battery life is very good.
Published 2 hours ago by MARIOS VARNAVA
3.0 out of 5 stars Three Stars
It is ok
Published 5 hours ago by M. Mc Grath
5.0 out of 5 stars On my Top 10 gadgets list
Very very useful
Published 7 hours ago by Mr. M. G. Bancroft
4.0 out of 5 stars Broke after a few months but Anker replaced it free of charge
Like a lot of other users have reported, this worked flawlessly for the first few months but then for no reason it just stopped charging my devices. Read more
Published 16 hours ago by djkelly99
5.0 out of 5 stars Chat for hours now!
I will no longer run out of charge on either my Tab or mobile when away from home for more then several hours
Published 1 day ago by Brian Shackleton
5.0 out of 5 stars only downside is the charger lead you get with it isn't the highest...
Def a handy thing to have around can keep phone etc going for quite a while depending on usage, only downside is the charger lead you get with it isn't the highest quality so... Read more
Published 1 day ago by Mr. D. Gillespie
5.0 out of 5 stars Well worth a few extra quid
Stuff like this, always go for good brands, otherwise you'll end up with a Chinese imitation. Well worth a few extra quid. Read more
Published 1 day ago by Alice
5.0 out of 5 stars Five Stars
Brilliant
Published 3 days ago by Miccina
5.0 out of 5 stars ... if it really holds 1000mAh but so far so good. The pouch is really...
Not sure if it really holds 1000mAh but so far so good. The pouch is really loose. With this charger, you can't charge 2 Android phones at the same time.
Published 3 days ago by T. Phua
5.0 out of 5 stars This battery is great, it's small and easy to take with you
This battery is great, it's small and easy to take with you, I get loads of full charges for my iPhone from this.
Published 5 days ago by Johnno260
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