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Anker Astro E4 Classic 13000mAh Portable Charger (2nd Generation High-Capacity External Battery Power Bank) with LG Battery Cells

4.6 out of 5 stars 7,261 customer reviews
| 1000+ answered questions

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  • The Anker Advantage: Join the 10 million+ powered by our leading technology.
  • Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge speed up to 3 amps.
  • Huge Capacity: Charges the iPhone 6 five times, the iPhone 6 Plus or Galaxy S5 over three times or the iPad Air once. Safely recharges with a 2 amp or higher output charger (most phone chargers have only 1 amp).
  • 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.

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From the Manufacturer

PowerCore 20100 Astro E5 High-Capacity 16750mAh PowerCore 13000 Portable Charger PowerCore 10000 PowerCore 10000 with Quick Charge 3.0
PowerCore 20100 PowerCore 20000 with Quick Charge 3.0 Astro E5 High-Capacity 16750mAh PowerCore 13000 Portable Charger PowerCore 10000 PowerCore 10000 with Quick Charge 3.0
Battery Capacity 20000mAh 20000mAh 16750mAh 13000 mAh 10000mAh 10000mAh
Charging Technology PowerIQ PowerIQ Quick Charge 3.0 PowerIQ PowerIQ PowerIQ Quick Charge 3.0
# of iPhone 6 charges 7.3 7.4 6 4.7 4.4 4.4
# of iPad mini 4 charges 2.5 2.7 2 1.5 1.3 1.3
# of Samsung S6 charges 2.5 2.5 4 3.3 2.2 2.2
# of USB Charging Ports 2 2 2 2 1 1
Max Charging Speed 5V 4.8A (2.4A maximum for each port) Quick Charge 3.0 Output: 5-6V 3A, 6-9V 2A, 9-12V 1.5A PowerIQ output: 5V 1A 5V 3A (3A maximum for each port) 5V 3A (3A maximum for each port) 5V 2.4A Quick Charge 3.0 Output: 5-6V 3A, 6-9V 2A, 9-12V 1.5A
Color Selection Black, White Black, White Black, White Black, White Black, White Black, White
Size 6.5 x 2.3 x 0.9 in 6.5 x 2.3 x 0.9 in 5.9 x 2.4 x 0.9 in 3.8 x 3.1 x 0.9 in 3.6 x 2.3 x 0.9 in 3.6 x 2.3 x 0.9 in
Weight 356g /12.56oz 369g /13.02oz 308g /10.87oz 240g /8.47oz 180g /6.35 oz 180g /6.35 oz

Product Features

  • Size (LWH): 5.91 inches, 2.44 inches, 0.91 inches
  • Weight: 10.4 ounces
  See more technical details

Product Description

With such massive capacity, in such a compact package, the Anker? Astro E4 is perfect for flights, road trips, or just any time you're away from an outlet. Enough power to go around. Marooned? In transit? Forget your OEM adapter? With the Anker? Astro E4, prolong your battery life multiple times, wherever you are. Holding enough power to charge a smartphone 3-6 times (depending on your phone's battery size), keep your gadgets going for days and still have juice left to share. Strong but never slow. In addition to capacity, the Anker? Astro E4 sports two concurrent, high-speed ports. So whether you're charging an Apple or Android device, you'll get the most out of your technology. We've also included connective adapters to ensure compatibility with most devices. Designed around the details. Just because the E4 packs a punch, doesn't mean it can't look nice. We went with a smooth, ebony finish to keep you traveling in style. Simple, unobtrusive features, such as one-touch status LEDs and a built-in flashlight, give you everything you need out of a battery without sacrificing aesthetics.


Product Information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
It was working well for about a month, and all of a sudden it just stopped working. I tried reorienting the charger and adjusting it, but no matter how I plug it in, it doesn't seem to work; there's no ligjt, and my devices won't charge. It was good while it lasted, but I'm disappointed it lasted for so little. I didn't put much stress on it during the time I used it.
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✔ ✔ ✔ Great Battery Pack for my Nexus 6P..!! Following are the features I like about it :

⭕⭕ Charges my Nexus 6p RAPIDLY through the Type C port, like the OEM wall charger.

⭕⭕ Awesome build quality, though it weighs around 13 ounces. The Aukey Battery Pack you see in the picture weighs 10 ounces by the way, though its just half the capacity. So you know, its not that hefty for the capacity it carries.

⭕⭕ Has a Quick Charge 2.0 USB and another iSmart charging USB port as well, apart from the Type C port that charges the Nexus like devices rapidly. The same Type C port could also be leveraged to charge-in the battery pack as well, letting up to an amazing 3A input current, for faster charging - Awesome & Welcome to the Future.. take that you micro USB ports..!!

⭕⭕ Another great feature is the Auto-On/Off functionality. You plugin your device, the battery pack switches on automatically & starts charging it, and you plug out your device, the battery switches back off - all without requiring your intervention.
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Length: 2:37 Mins
The Anker Astro E413000mAh battery pack is an excellent choice for an on the go power solution at an affordable price.

Box contents:
-Anker Astro E4 13000mAh battery pack
-Micro USB cable
-Instruction manual and other cards

Pros:
-Battery pack has a capacity of 13000mAh
-Small in size for this size battery pack
-USB ports have a combined max output of 3 amps and has PowerIQ so any device can be charged at max speed
-Battery pack charges at 2 amps using the micro USB port
-Built in LED flashlight (not bright but its a flashlight)
-Feels nice to hold and is easy to carry in my hand
-Can charge my iPhone 5 around 6-7 times
-LED power level system (4 LED's and each LED indicates 25% of the batteries capacity) (these lights are not that bright which is a good thing)
-Low price for this high quality and high capacity battery pack

Cons:
-LED flashlight is not that bright

Overall, this is a great choice if you are looking for a battery pack, especially for the price compared to other listings that have the same battery capacity!

I highly recommend this battery pack!

Watch my video review.
I was supplied a sample for test and evaluation, for free to keep, and I promised that my review is fair and honest.
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First off let me say how impressed I am with this product - for real. Anker gave me this product in exchange for my honest feedback, but this thing is seriously unbelievable. It is incredibly small (4.1 x 3 x 0.9 inches) and very lightweight (13.3 ounces). I travel a lot so I am constantly on the lookout for something/somewhere to charge my devices whether on planes, out in the desert, in a cafe in Europe, on a long train ride, etc. I've found my new favorite. Even if I am just at home on the couch or lying in bed, I can have my power source close by so I am not constricted by a cord going to the wall. At 13,000 mAh this thing just does not stop. It holds an unsurpassed charge for longer than any other devices I've used. I've done some testing over the past few days. Here are the results:

1 full charge of the Anker Astro E4 13,000 mAh external battery lasted me three days using it solely:

*Charged my cell phone (Motorola Atrix) over night. The Astro E4 turns off when finished charging!
*Charged my friend's cell phone (Samsung Galaxy S3) for 2.5 hours during a movie at the theatre.
*Charged my Nexus 7 tablet over night.
*Charged my Motorola Atrix again last night to 73%.

*ALL before needing its first recharge!!*

My favorite features:
=============
*Dual power ports - one for 1 amp devices and one for 2 amp devices
*Can charge multiple devices at once
*Comes with MicroUSB, MiniUSB, and Apple iPad plugs with a sleek, well-made USB charging cable
*Awesome soft, fabric bag to hold the unit and its accessories
*Built-in LED flashlight!
Read more ›
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Verified Purchase
Ever since I bought my NEXUS 6P, I was in the market for a big battery pack for situations when I'm either traveling or don't have access to a power outlet. Some of you that know the battery capacity of the 6P might be wondering "well you have a big battery already with the Doze feature... how much power do you need?!" Although this statement may be true for my daily lifestyle of being in the office or at home, there are times when I might be out and about, at a theme park for instance, and see myself stuck in hours of long lines that can drain my battery. Additionally, my girlfriend has a Galaxy S6 which isn't as capable as the new NEXUS phones and needs to be charged come mid-day after being unplugged and being used on a normal basis (e.g. - Instagram, Facebook, Google Maps, etc.).

Being in the market, there were certain criterion I was looking for before deciding what would be a good fit for me:
-a big battery capacity that would charger multiple devices at the same time and multiple times if needed
-quick charge capability for the NEXUS 6P and Galaxy S6
-portability & durability
-price

With these factors in mind, I ended up having three packs that I was able to play with: Anker's PowerCore 20100 bank, Anker's PowerCore+ 20100 bank, and the RAVPower unit which is currently being reviewed. Comparison and review of this unit to the PowerCore 20100 bank is neglected due to the fact that the Quick Charging capabilities claimed by Anker either doesn't support newer phone's or I had a defective product. Thus, the remaining review is a summary and comparison of the PowerCore+ 20100 and the RAVPower battery pack. If the reader is interested in seeing my assessment of the other two packs, a link is directly provided below.
Read more ›
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