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  • Anker® 2nd Gen Astro 6400mAh (2A Output) Portable Charger  External Battery Power Bank with PowerIQ™ Technology for iPhone 6 Plus 5S 5C 5 4S, iPad Air 2 Mini 3, Samsung Galaxy S5 S4 Note Tab, Nexus, HTC, Motorola, Nokia, PS Vita, Gopro, more Phones and Tablets (Black)
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Anker® 2nd Gen Astro 6400mAh (2A Output) Portable Charger External Battery Power Bank with PowerIQ™ Technology for iPhone 6 Plus 5S 5C 5 4S, iPad Air 2 Mini 3, Samsung Galaxy S5 S4 Note Tab, Nexus, HTC, Motorola, Nokia, PS Vita, Gopro, more Phones and Tablets (Black)

by Anker
| 75 answered questions

Price: £49.99
Sale: £18.99 & FREE Delivery in the UK. Details
You Save: £31.00 (62%)
In stock.
Sold by AnkerDirect and Fulfilled by Amazon. Gift-wrap available.
6400mAh 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 2 amps.
  • Uber-High Capacity: Charges the iPad mini once, the Galaxy S5 over one and a half times, the iPhone 5s almost three times and other smartphones multiple times.
  • Superior Quality: Premium LG cells, cutting-edge circuitry and a sturdy drop-tested exterior ensure durability and safety. Recharges in 6 hours with a 1.2 amp adapter (not included) and the included Micro USB cable.
  • What You Get: Anker® 2nd Generation Astro Portable Charger External Battery Power Bank, Micro USB cable, travel pouch, welcome guide, our fan-favorite 18-month warranty and friendly customer service.

Frequently Bought Together

Anker® 2nd Gen Astro 6400mAh (2A Output) Portable Charger  External Battery Power Bank with PowerIQ™ Technology for iPhone 6 Plus 5S 5C 5 4S, iPad Air 2 Mini 3, Samsung Galaxy S5 S4 Note Tab, Nexus, HTC, Motorola, Nokia, PS Vita, Gopro, more Phones and Tablets (Black) + Black 20CM Short Small USB Data Sync Charge Cable - Premium Quality - For All Apple Devices iPhone 3GS 4 4S, iPad 1 2 3
Price For Both: £22.48

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Special Offers and Product Promotions

Colour Name: 6400mAh Black

Product details

Colour Name: 6400mAh Black
  • Product Dimensions: 9.3 x 4.3 x 2.2 cm ; 122 g
  • Boxed-product Weight: 200 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-79UN53V1-B8P56A
  • ASIN: B005NFOA0S
  • Date first available at Amazon.co.uk: 16 Sept. 2011
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (1,182 customer reviews)
  • Amazon Bestsellers Rank:

Product Description

Colour Name: 6400mAh 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 Portable Charger External Battery Power Bank
The most powerful and portable charger in its category.

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

Uber-High Capacity
Packed with power, charge an iPhone 5s three times, a large capacity phone like the Galaxy S5 over one and a half times or an iPad mini once.

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

Ultra Compact
As small as a candy bar. Now upgraded with higher density cells and efficiency 10% above most other brands to give you 6% more power.

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

Most Helpful Customer Reviews

16 of 16 people found the following review helpful By Agent Fruit on 28 July 2014
Colour Name: 6000mAh Black Verified Purchase
Unfortunately this charger had a faulty USB port, making it virtually impossible to attach any iPhone USB lead to it. When a connection was made however it was an incredible little powerhouse for its size. Very portable (pocket sized) and it gave multiple partial charges to an iPhone 5S and an iPhone 4 over the course of a weekend, and still had a little to spare. Sadly it's virtually unusable with the faulty connection.

Update:
Within 24 hours of this review Anker contacted me and arranged for a replacement. Unfortunately this had the same issue however Anker immediately offered a refund (and don't worry about sending either of them back), or to replace it with the 9000mAh model. Incredibly good customer service, which is consistent with the other reviews here. I'm sure they'll resolve the problems with this model, and in the meantime keep replacing faulty units with no argument. It's the perfect size for a pocket so it's worth waiting for. The 1200mAh model I bought is absolutely fine.

Next update:
Anker contacted me again to send me an updated unit free of charge to test. They've fixed the USB problem and the new unit works perfectly, hence I've changed my review to five stars. They've kept in touch to check that I'm happy with it. Anker customer service is astoundingly good and I wouldn't hesitate to buy any of their products.
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180 of 187 people found the following review helpful By Tomcatuk on 4 Aug. 2013
Colour Name: 6400mAh Black Verified Purchase
Only just got this, mainly to charge up a gopro battery, but thought I would charge up my iphone5 as was about to go out and no time to plug into mains charger, as it does not come supplied with the latest type (lighting connector) I took the iphone lead with me and plugged it in... great its charging... two minutes later the charging stops and you get the yellow warning triangle displaying on the iphone5 that this is not a compatible charger and so will not charge your iphone5 despite the product claiming to charge it.

Update: After writing this review I was contacted by Anker who were most concerned about this not working with the iPhone 5, to cut a long story short this product now gets FIVE stars and the same for the Anker support via email, there is sometimes a slight delay in getting a reply due to the times zone but it was sorted out and Anker sent me a replacement unit via Amazon.
I plugged it in to a half charged unit and no more warning from the iphone, charged up the iphone which was on 67% to 100% in no time at all, can not recommend this company and support highly enough, if only all support was like this... they also told me no need to return the old unit so keeping that as it works on the Gopro hero 3.
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6 of 6 people found the following review helpful By Highlanderbiker on 30 July 2014
Colour Name: 6000mAh Black Verified Purchase
I bought this to replace a Brunton Metal 4400 portable battery pack (which cost twice as much) which refused to accept a charge after a couple of month's use. It was a "faulty batch" & the retailer I bought it from had to send them all back to the UK importer but refunded me quickly. So I was a bit reticent about buying another charger in view of some of the reviews mentioning the Anker 6000 having likewise stopped working, but the many reassuring comments about Anker's customer service & its replacement policy persuaded me to take the plunge & buy one.

I did ask Anker, by phone to the US & by email (emails are handled by their China office apparently) a few preliminary questions before committing to purchase & so can verify first hand how knowledgeable & prompt their customer service is.

It is a well-designed, solid & sleek-looking item with a cool matt black finish &, though it hasn't yet had much use, seems to be doing everything I need it to & what the makers say it should be doing. Though the Brunton metal had the convenience of two permanently attached stowable cables (one for charging the unit & one for charging your device) attaching the single cable which the Anker comes with is no hassle & is suitable for charging the Anker from a USB wall charger (I use the one which came with my Nexus 5 phone) & also for charging your device from the Anker whilst out & about. According to the concise instruction card which came in the minimalist box any USB charger rated at 1 Amp or above will enable the Anker to be fully charged from near empty in the advertised 6 hours - lower Amp rated chargers will work also but will just increase the charging time.
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6 of 6 people found the following review helpful By Cobra on 8 Sept. 2014
Colour Name: 6400mAh Black Verified Purchase
We are all carrying more and more devices with us and batteries do seem to run out at the worst of moments. Some companies even charge massively for backup batteries and even then those batteries will only work with the device they are brought for.

I have found the Anker Astro 5600mAh power pack to be a life safer of many occasions. I do not find it heavy and it's nicely sized so i keep it in my pocket when i go out. Often on a busy day my iPhone will run out of battery, or my camcorder when i really want to film something. This is not a problem anymore since i am able to charge on the go.

Surprisingly the battery charges devices very quickly, but once the Anker battery needs recharging itself it can take a while. I suggest charging the Anker battery over night, that way you are guaranteed full charge for the day ahead. You can use this battery to supply power to anything that uses USB to charge, simply by plugging the usb cable into the battery, and then connecting your device to the same cable. Pressing a button then activates the charging process.

You also have use of a torch that's built into the device. This is very useful if you even need a torch on your journeys. I highly recommend this product to pretty much anyone. You never know when you'll need more power while outside and this gives it to you.
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