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Anker Astro E4 13000mAh External Battery

Anker Astro E4 13000mAh External Battery

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 most smartphones 7-8 times, 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, ivory/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.

Customer Reviews

Venkata Nallanthighal
  • Five StarsVerified PurchaseThis review is from: Anker® Astro E4 13000mAh Dual USB Portable Charger Backup External Battery Power Bank for iPad Air, mini, iPhone 5S, 5C, 5, 4S, Galaxy S5, S4, S3, Note
  • Great & powerful battery pack
  • 2014-07-29

stefanie Plato
  • Great Charger!Verified PurchaseThis review is from: Anker® Astro E4 13000mAh Dual USB Portable Charger Backup External Battery Power Bank for iPad Air, mini, iPhone 5S, 5C, 5, 4S, Galaxy S5, S4, S3, N
  • This works great and power lasts and lasts! Great for camping, and traveling
  • 2014-07-29

vriosm
  • Excelent portable batteryThis review is from: Anker® Astro E4 13000mAh Dual USB Portable Charger Backup External Battery Power Bank for iPad Air, mini, iPhone 5S, 5C, 5, 4S, Galaxy S5, S4, S3, Note 3,
  • Excelente product.I could completely recharge my iPhone 4 up to 5 times before having to recharge my battery Anker Astro E4.I highly recommend it for long trips. So you do not have the need to sit next to a plug as many people do and therefore you have the freedom to sit wherever.The only drawback I find is that the small cloth bag included for storage does not close completely, much less itself is stored together with the cable.
  • 2014-07-29

N. Barad
  • Great Product- Great PriceVerified PurchaseThis review is from: Anker® Astro E4 13000mAh Dual USB Portable Charger Backup External Battery Power Bank for iPad Air, mini, iPhone 5S, 5C, 5, 4S, Galaxy S
  • Great product. Huge capacity. Easy to use. Great price. Works well with my i-phone 5S. Even came full of power. I have recommended this product to 2 of my friends.- that pretty much says it all
  • 2014-07-28

Jameson
  • NiceVerified PurchaseThis review is from: Anker® Astro E4 13000mAh Dual USB Portable Charger Backup External Battery Power Bank for iPad Air, mini, iPhone 5S, 5C, 5, 4S, Galaxy S5, S4, S3, Note 3, Nex
  • They are serious about the output needing to be stronger than a normal outlet. I couldn't get it charged so I called them and they had me plug it into my laptop which apparently has more amps. It worked great when I took it to the mountains last week.
  • 2014-07-28
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Customer FAQ

Q1.  Can I use a different USB cable rather than the cable that comes with the Astro E4 13000mAh external battery?
Yes, you can use other cables. However, to ensure compatibility and best performance, we strongly recommend using your device’s original cable, a third-party certified cable (such as MFI) or the included cable.
Q2.  What kind of wall charger should I use to charge the Astro E4 13000mAh external battery?
The battery can be recharged from any PC or laptop USB port or any USB AC adapter. A USB AC adapter with 1.5A or more output current will maximize charging speed. Lower currents will prolong charge time.
Q3.  What devices are compatible with the Astro E4 13000mAh external battery?
The battery is compatible with Android, Apple or other devices by enabling charge speeds of up to 3 amps overall or 3 amps per port.
Q4.  Does the Astro E4 13000mAh external battery work with the new iPhone 6 and iPhone 6 Plus?
Yes, but the Apple cable is not included. Please use your device's original cable.
Q5.  Will the supplied Micro USB v2.0 cable compatible with the Micro USB v3.0 devices, such as Samsung Galaxy S5/Note2/Note3?
Yes, take a close look at the port and you will see the port is divided, insert the none Micro-USB 3.0 plug to the appropriate side and it will work fine.
Q6.  What's the output efficiency of the Astro E4 13000mAh external battery?
The efficiency of this battery is around 70%-80%. The internal circuit board is 92% efficient, accounting for power lost through circuit heat and voltage conversion, which is up to 5% above the industry average. Energy is also lost within the charging cable and the device being charged (approximately 15-20%). Additionally, the efficiency can be affected by the cable length and the age of the device being charged.
Q7.  Can the Astro E4 13000mAh external battery charge other devices while it is being charged?
Yes.
Q8.  Do I need to press the power button when charging other devices?
Yes.
Q9.  Can the Astro E4 13000mAh external battery charge two devices simultaneously?
Yes, it can charge two devices simultaneously. But please note that when using 2 output ports simultaneously, the total output current will not exceed 3.0A.
Q10.  How do I turn on/off the flashlight?
Please press the power button twice to turn on/off the flashlight.
Q11.  What do the LEDs indicate when the Astro E4 13000mAh external battery is charging itself or other devices?
When the battery is charging your devices, the LED indicator will stay on displaying the battery’s remaining power and will turn off when the device is fully charged and not drawing a current.

When the battery is being charged, the remaining power of the LED indicators will light steadily; while the next charging LED indicator will flash. And they will turn off when the Astro E3 is fully charged.
Q12.  How long will the charge in the Astro E4 13000mAh external battery last without being used?
Generally, the Astro E4 13000mAh external battery's static power consumption is lower than 100uA, which will take between 3.5 and 20 years to drain the battery completely.
However, the chemicals within the li-ion battery will gradually become less active over prolonged periods without use. Most will die in 2 years of inactivity. To extend your battery's life, please discharge and recharge it at least once every 4 months.
Q13.  Can the Astro E4 13000mAh external battery be used for international travel?
Yes. Please be sure that the USB AC adapter is compatible with the voltage of the country you're travelling to. The input voltage of an adapter is usually labeled on the adapter.
Q14.  Can the Astro E4 13000mAh external battery be taken on board airplanes?
Yes, all Anker external batteries including the Astro E4 12000mAh external battery can legally and safely be taken on board airplanes. Here are the relevant requirements:
Quoted from Federal transportation security rules (Effective January 1, 2008):

Lithium ion batteries (a.k.a.: rechargeable lithium, lithium polymer, LIPO, secondary lithium).
-Passengers may carry consumer-sized lithium ion batteries [no more than 8 grams of equivalent lithium content or 100 watt hours (wh) per battery]. This size covers AA, AAA, 9-volt, cell phone, PDA, camera, camcorder, Gameboy, and standard laptop computer batteries.
-Passengers can also bring two (2) larger lithium ion batteries (more than 8 grams, up to 25 grams of equivalent lithium content per battery) in their carry-on. This size covers larger extended-life laptop batteries. Most consumer lithium ion batteries are below this size.

Anker's largest external battery is currently the Anker Pro2 20000mAh (74 wh) which is lower than the above 100 wh limit.
Q15.  What should I do if the Astro E4 13000mAh external battery can not be charged?
Please try a different AC adapter and Micro USB cable to see if that helps. Email us at support@ianker.com during your 18-month warranty period if this doesn't fix the issue.
Q16.  What should I do if the Astro E4 13000mAh external battery can not charge other devices?
Please try a different charging cable between the Astro and your device. Email us at support@ianker.com during your 18-month warranty period if this doesn't fix the issue.

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Latest Post

how to use
How do you use the battery?
Replies(2) Collapse Report as spam Nov 5, 2014 at 10:38 AM
ANKER Team
Plug it into a USB wall charger using the provided cable and then when its charged, plug it into the device you want to charge and hey presto!
Reply Report as spam Nov 11, 2014 at 3:49 AM
Matinikk
You use this external battery to charge your smartphone or tablet. Just connect your charging cable to this external battery USB port and you are all set.
Reply Report as spam Nov 6, 2014 at 11:50 AM
Broken
Hi, I have had this product for seceral months and it has now broken, one light continually flashes and it does not charge my other products. I am outside the amazon return window so would like a replacement please or advice on fixing it.I was very satisfied with the product until this. Thanks. J
Replies(2) Collapse Report as spam Oct 9, 2014 at 6:40 AM
ottoyu34
Send a email to support@ianker.com, they will be glad to assist you.
Reply Report as spam Oct 9, 2014 at 11:02 AM
ANKER Team


Sorry to hear you've run into issues.

Please try charging the E4 with a different cable and wall charger to see if that helps. If you are still having issues though do get in touch with our customer service guys at support@ianker.com, we have our own 18 month warranty for all our products.
Reply Report as spam Oct 9, 2014 at 8:30 PM
Recommendation
If I need to have it in my hands in 2 weeks in Canada, would you recommend that I get the Anker Astro E4 now or wait and see if the 2nd gen Astro E4 will be available in Canada and pay for rush shipping?
Replies(1) Collapse Report as spam Sep 16, 2014 at 5:43 PM
ANKER Team


To be safe we'd suggest you go with the older version, it's not just our shipment up to Amazon CA that could take time but the Amazon warehouse processing time needs to be accounted for.
Reply Report as spam Sep 16, 2014 at 9:00 PM
Differenl
The 2nd Gen is not on the Amazon.ca store yet, but this one is. Besides for the two ports having PowerIQ, are there any other differences between this E4 and the 2nd gen E4? 
Replies(1) Collapse Report as spam Sep 15, 2014 at 9:36 AM
ANKER Team


The size and weight are slightly different (you can confirm the exact measurements on our listings).
Reply Report as spam Sep 15, 2014 at 8:30 PM
A great battery gets better...
Got my Anker Astro E4 13000mAh External Battery from Amazon today. A great battery at a great price! iPad, iPhone, iPod, Kindle Fire HD, even my Asus T100TA tablet/dock - it charges them all. The design is sleek and compact, especially since it packs 13000mAh of power! It's official, from now on the new Anker Astro E4 goes with me everywhere!
Replies(2) Collapse Report as spam Aug 7, 2014 at 9:42 PM
ANKER Team


We're so glad to hear that you and so many others are enjoying the new E4!
Reply Report as spam Aug 8, 2014 at 3:00 AM
David Hocutt
One suggestion; as great as this battery is, a matte or even rubberized finish would be better than the glossy finish, which shows every finger print and smudge. Still, this is a revolutionary product!
Reply Report as spam Aug 8, 2014 at 7:27 AM
brand new Astro E4 wont turn off
Hi just recieved this from Amazon  charged the unit until it had 4 lit led's but it wont power off ? .. Any ideas  .. Thanks
Replies(1) Collapse Report as spam Aug 7, 2014 at 2:07 PM
ANKER Team


If the E4 is still plugged in then the lights won't turn off. Do they remain on even when you unplug it?

Please do get in touch with our customer support guys at support@ianker.com and let them know, they'll help you out.
Reply Report as spam Aug 8, 2014 at 2:00 AM
longest battery life?
I need a mouse for gaming like every day gaming, and i need the battery to last long!
Replies(1) Collapse Report as spam Jul 29, 2014 at 5:26 PM
ANKER Team


Then go for cabled like with the Anker® CG100!
Reply Report as spam Jul 30, 2014 at 2:00 AM
Anker® CG100 Battery Life
How long does the Anker® CG100 battery last for?
Replies(2) Collapse Report as spam Jul 29, 2014 at 5:20 PM
Fire and Ice
This is an Anker E4 and it lasts for months on end if you dont use it
Reply Report as spam Jul 29, 2014 at 5:34 PM
ANKER Team


The CG100 is a wired mouse and so doesn't need batteries!
Reply Report as spam Jul 30, 2014 at 2:00 AM
Charging
Hi,How many times can be charged Anker Astro E4 during its lifetime?I own an Asus goole nexus 7 tablet. Can I use Anker Astro E4 to charge it?Thanks.
Replies(1) Collapse Report as spam Jul 29, 2014 at 12:24 PM
ANKER Team


The E4 will be good for at least 500 recharges and yes it'll charge the Nexus 7 with no problem at all.
Reply Report as spam Jul 30, 2014 at 1:00 AM
Standby Time
How long will the battery Hold a charge for if left without charging anything?
Replies(1) Collapse Report as spam Jul 29, 2014 at 9:01 AM
ANKER Team


A long, long, long time!

However, the chemicals within the li-ion battery will gradually become less active over prolonged periods without use. Most will die in 2 years of inactivity.

To extend your battery's life:

1. Charge and recharge it at least once every 2 months.
2. Do not over-charge or over-discharge it. It is best to keep it charged between 5%-95%.
Reply Report as spam Jul 29, 2014 at 11:00 PM
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