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Anker® 2nd Gen Astro 6000mAh (2A Output) Portable Power Bank Pack External Battery USB Charger with PowerIQ™ Technology for iPhone 6 5S 5C 5 4S, iPad Air, mini, Galaxy S5 S4 S3, Note 4 3, Galaxy Tab 4 3 2, Pro, Nexus, HTC One, MOTO X G, LG Optimus, PS Vita, Gopro, most other Phones and Tablets

4.4 out of 5 stars 186 customer reviews
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  • PowerIQTM technology maximizes compatibility with Android, Apple or other devices by enabling charge speeds of up to 2 amps.
  • 6000 mAh of capacity and an energy efficiency rate 10% above previous generation Astros and many current standard alternatives charges the iPhone three times and large-capacity phones like the Galaxy S4 almost twice.
  • A "shake" starts a charge or displays the remaining power level. The ultra-low power consumption (100000 shakes consume less than 1%) 10-LED power meter balances accuracy and aesthetics.
  • Sturdy construction and matte finish withstand bumps and drops. Grade A cells and premium chips ensure reliability. Input: 5V / 1A; Use a 1A adapter (not included) with the included USB cable for the fastest charging time (6 hours).
  • Package contents: Anker® 2nd Generation Astro External Battery, micro USB cable, user manual, 18-month hassle-free warranty. (Apple 30 pin and lightning adapters, Samsung 30-pin adapter not included)

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Product details

  • Product Dimensions: 9.6 x 4.6 x 2.5 cm ; 136 g
  • Boxed-product Weight: 222 g
  • Delivery information: We cannot deliver certain products outside mainland UK ( Details). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
  • Item model number: AK-79AN7902-BA
  • ASIN: B00F91KMHG
  • Date first available at Amazon.co.uk: 29 July 2014
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (186 customer reviews)
  • Amazon Bestsellers Rank:

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Customer Reviews

Top Customer Reviews

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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Verified Purchase
Review is for Anker 6000mAh single output port.

As somebody else said: "I bought this a month ago to recharge my iPhone while traveling. It worked great for just under a month. Now the device itself won't charge. I've tried different cables and tried to charge it via a wall adapter and through my laptop. Nothing. The LED lights won't turn on at all. I'm incredibly disappointed in this product."

All I can add is that I got a second one and the same thing happened, but in less than a week. Not sure if I'll see if "3rd time lucky". They look the part! Lovely look and feel.

Later: yes I tried a third. It lasted two weeks then died. Maybe a bad batch but I'd be a bit silly to try again.

Later: the firm apologised and refunded me. They asked me if I'd like a free one and I agreed. (late May 2014.) So far, after about two weeks, it is fine. The firm read feedback and are very good. Five stars for customer service. Shame some batches of this particular product are faulty. If the 4th one keeps working I'll add stars to the product review.
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Verified Purchase
First of let me make sure the positives are known for this battery (6000mah version)

POSITIVES:

- Very light and very compact. (I had a mophie juice duo which too was 6000mah and much larger and heavier and couldnt be charged by mains)

- Can be charged by mains. I tried to use my HTC one charger which is 1amp and it didn't work, used my iPhone 1amp charger which worked perfectly. I charge it overnight and its fully charged in the morning

- Very quick at charging my iPhone 5, it fits in my pocket fine and I have a 15cm belkin lightning cable so theres no long wires hanging out my pocket.

- Comes with a micro USB cable so you can just plug the battery into your existing apple/android charger.

- THE PRICE. Very cheap compared to other more well known rechargeable battery brands in apples online store and elsewhere. Admittedly the 9000mah is better value and 12000mah even better value but I wanted a smaller and lighter battery and didn't need more than 1 port.

- comes with an 18 month warranty and Anker's fantastic reputation in support in both the UK and US.

NEGATIVES:

- The battery indicator.... In my experience this light is a nightmare, sometimes it comes on without even any movement just sitting on a table (it's supposed to come on at the shake of a wrist). ANKER next time just stick with a button to press to show the battery level left, this feature is counter intuitive as the battery won't always be stationary and even the slightest movement brings the light on. It may not use much battery but it's annoying.

CONCLUSION:

Other than the battery level indicator this 2nd gen series is the best set of rechargeable batteries on the market in the UK for capacity/price ratio.
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Verified Purchase
Small enough to fit inside a jacket pocket, rounded edges help, although a completely rounded shape would be an even easier fit. Battery gauge an excellent idea. Charging and output ports could be more clearly marked, and a little more recessed to actually support the USB plugs. Tested with iPhone 5S, iPad Mini Retina, Nexus 7 (2013) and Nexus 5 worked very well with a quick effective charge. No tests were with completely drained devices but I estimate you could get two complete iPhone charges from a fully charged unit, so in practice 3 good top up charges from around the 20% (red) mark.

Overall compact, effective, reliable, well designed and excellent value
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Verified Purchase
I have a htc one m8. My partner has a nexus five. We only take this with us when we are going on a trip or on a long day out to the city. It is so valuable to have when you need it.

This particular model is a really nice size, it is not too heavy and provides about 2.5 charges for my device.
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