- Product Dimensions: 15 x 6.2 x 2.3 cm ; 295 g
- Boxed-product Weight: 363 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
- Batteries 1 Lithium ion batteries required.
- Item model number: AK-79AN13K2-BA
- ASIN: B00BQ5KHJW
- Date first available at Amazon.co.uk: 10 Mar. 2014
- Average Customer Review: 4.7 out of 5 stars See all reviews (2,939 customer reviews)
- Amazon Bestsellers Rank:
Anker 2nd Gen Astro E4 13000mAh 2-Port (3A Output) Fast 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 (Black)
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- Choose from over 13,000 locations across the UK
- Prime members get unlimited deliveries at no additional cost
- Find your preferred location and add it to your address book
- Dispatch to this address when you check out
- 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
- Huge Capacity: Charges the iPad Air once, the Galaxy S5 over three times, the iPhone 5s almost six times and other smartphones multiple times. Recharges in 6.5 hours with a 2 amp adapter (not included) and the included Micro USB cable.
- Superior Quality: Premium LG cells, cutting-edge circuitry and a sturdy gloss exterior ensure reliability and safety. To activate the LED flashlight, hold or double click the power meter button.
- What You Get: Anker 2nd Generation Astro E4 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
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Size: 13000mAh | Colour Name: 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 E4 Portable Charger External Battery Power Bank
Supersized power in the palm of your hand.
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.
Enough power to keep you going for days. Charge an iPhone 5s almost six times, a Galaxy S5 over three times or an iPad Air once.
The new E4 weighs under a pound and rests nicely in your palm. Press the button to check your power level or hold to activate the flashlight.
We use only premium LG battery cells, together with the most advanced materials and cutting-edge technology, to ensure complete safety.
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.
• Remove film before use.
Top Customer Reviews
I was very impressed with this charger. It charged up multiple phones quickly and many times, is well designed and made, and Anker's approach and ethos are very refreshing.
I bought this to take on holiday with me, as we were going to be travelling quite a lot and I wanted something that could keep my phone charged up if I couldn't get to a plug (I did NOT want to lose my music and films 2 hours in to an 18 hour long-haul flight!) This baby was a life-saver. I reckon I could fully charge my phone from absolutely dead almost 4 times before the unit needed charging.
What was more impressive than that was the speed it charged - I could almost see the percents ticking up as I watched! You might think that a phone will charge at the same rate regardless of how it's plugged in, but that isn't so. Sometimes different chargers are lower powered, and sometimes they just don't speak the same language as the device being charged. Anker use something they call PowerIQ to identify the device plugged in and charge it at the optimum rate. Clever stuff. I can safely say that this charged my phone FASTER than the wall charger that the phone came with. I'm considering using it at home as well as travelling!
The best thing about it is its portability. You can plug your phone in, leave them both in your bag for the 20 minutes it takes to transfer at a bus station (when you're too busy trying to work out the timetables/terminals/tickets/toilets to be using it anyway) and your phone is well on it's way to being charged again.
It was useful having 2 USB ports, as both me and my girlfriend could charge at the same time. Plugging 2 phones in does make the charging a bit slower, but not by much.Read more ›
I have had a number of Anker products to review recently and I have rated them all as 5 star products. This item is a brilliant idea, it is in essence a rechargeable battery that charges other items, such as my Android phone. The product is quite small and relatively lightweight given the capacity of its charge. It is made from quality black plastic, with a chrome casing around the outside, which makes it look and feel superb. There is a chrome button which turns the unit on and off and also switches the internal LED flash-light on and off. Above the button are 4 blue LED lights which indicate the amount of charge left in the unit. There are 3 outlets, 2 USB ports and one Android/Phone charging port. To use you simply charge the unit using a USB port and then use the included cable to charge the item you want to charge such as a phone. On my test, I charged my Sony Xperia phone from empty to 100% charge in 1 hour 20 minutes, so equating to almost the same charge rate as plugging it into a socket. This charge also hardly dissipated the internal battery of the unit. I think the units' battery once fully charged, will allow 7 full charges of my mobile phone, giving the unit an enormous capacity.
I am very impressed by the unit and how it looks and the quality of its construction. As always the item is backed by Anker's 18 month warranty and helpline. For the first time with an Anker product I have two minor concerns. Firstly the instruction book is far to small and was difficult to read. Secondly the On/Off switch can be turned on too easily, resulting in the LED torch illuminating and so discharging the battery.Read more ›
Takes a while to charge so I generally have charged it overnight and it's good to go, so no complaints here. Good size for the capacity, not very lightweight but certainly light enough for travelling with a bag.
Lovely sleek design that feels quality, LEDs look good but I'm not 100% convinced they dropped accurately with the battery as it was on 3 LEDs for ages then dropped to 1; but that could be my perception.
Charges my Nexus 5 and Nexus 10 extremely quickly, in fact it charges the 10 faster than the Nexus mains charger I have for some reason. Definitely a top quality product and the IQ charging lives up to the hype. All I wanted was a compact battery pack that would hold a couple of charges for my devices and would charge them rapidly, and this does all the above.
Overall it does everything I wanted and comes in lovely packaging with a great mesh bag and USB cable. Only time will tell how it holds up, but great so far!
In terms of the functions, it is very well thought out. Information for battery charge, a built in torch, 2 usb ports which charge at roughly 3 amps ( this is very good btw ) while it charges its own battery with a 2amp input ( this is normal ). Sometimes I find myself using this to charge my phone faster then if I had a wall charger. I charged two devices impressively fast at the same time. One being a one plus one phone and the other being an htc one x. I bought this size due to my power requirements. It is a fairly chunky size, which has been designed really well with curved edges and shiny gloss finish to distract you from the size. With that in mind my only advice would be to find out the size of your batter in mah, and then decide how many times you would like this charger to charge your device and then choose your size. This means you can get the right size for you. In terms if size, it is worth noting that there is a size to power ratio which no manufacture can get past at the moment, so the more power you need expect it to be much larger. No fault to Anker, I think their design is beautiful and I am very happy with my purchase.
For peace of mind, it's worth noting I have other Anker devices. I took a punt a while back by buying an Anker device, and I was very impressed of the quality of the manufacturing. I am now sold on their products and would not hesitate choosing Anker over other well known brands. The price is always competitive and their products perform.
If you do buy an Anker product, do post your review as good products deserve our time and voice!
Most Recent Customer Reviews
Great product. Has been using it for over a year now and haven't seen any drop in the charge levels yet.Published 11 hours ago by Suhruta Yajaman
Really happy with this. Excellent build. Charges my LG G4 at an incredible rate.Published 12 hours ago by Amazon Customer
Fantastic battery. It charges itself quickly, charges other things quickly, and has the ability to charge multiple items at once. Read morePublished 13 hours ago by HF
does what it says. If your battery is rubbish or you travel/go to festivals a lot then you will wonder how you managed so long without itPublished 1 day ago by vocalbill
I previously owned a 1st gen model which still works, I changed to this version for the higher/quicker charger rate. Read morePublished 3 days ago by squeeze