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Anker Astro E4 13000mAh External Battery

Anker Astro E4 13000mAh External Battery

9901 Bluetooth speaker

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.

For optimal use

- For simultaneous, max-speed charging of your Astro and other devices, check out Anker’s new line of 18W / 3.6A car and home adapters.
- To ensure complete safety and best performance, we strongly recommend using your device’s original cable, a third-party certified cable (such as MFI) or our included cable.
- Compatible with all Apple and Android smartphones, tablets and other 5V input USB-charged devices. The iPod nano and some GPS and Bluetooth devices are not supported.

Popular Compatible Models

Apple: iPhone 5S, 5C, 5, 4S, 4, 3GS / iPad, iPad 2, iPad 3, iPad 4, iPad mini / iPod (Apple adapters not included)
HTC: One Max, One, One X, S, V / Sensation, Sensation XE XL / EVO 4G / Radar 4G / Inspire 4G / Vivid 4G / Wildfire S / ThunderBolt / Incredible 2 S / Rezound / Desire X, C, V, HD, S, Z
Samsung: Galaxy S4 / S4 mini / Galaxy S3 / Galaxy Note 3 / Galaxy Note 2 / Galaxy S2 I9100 / Galaxy S I9000 / Verizon Galaxy S3 I535 / AT&T Galaxy S3 I747 / Sprint Galaxy S3 L710 / T-Mobile Galaxy S3 T999 / T-Mobile Galaxy S2 T989 / AT&T Galaxy S2 I777 / AT&T Galaxy S2 Skyrocket SGH-I727 / Galaxy Nexus / Focus S / Infuse (Galaxy Note 10.1, Tab 2, Tab 7.0 not supported)
Motorola: X Phone, Droid Razr, Bionic / Atrix 2 / Triumph
LG: Nexus 4, Optimus 4X, 2X, V, S, T, 3D, 7
Nokia: Lumia 1020 920 820 900 710 800 / N8 / N9
Others: Blackberry Z10 Torch Curve 9900 9360 9320 / Sony Ericsson Xperia Arc S, Sony Xperia Z,X10 / PSP / Nook Color / MP3 MP4 MP5 / GoPro / Amazon Kindle, Kindle Fire,Nexus 7

Customer Reviews

jerry douglas
  • 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
  • works as avertised
  • 2014-07-22

ABDULLAH ALMALKI
  • Four 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
  • Nice
  • 2014-07-22

A. Roach
  • Great product. Can charge two devices simultaneouslyVerified PurchaseThis review is from: Anker® Astro E4 13000mAh Dual USB Portable Charger Backup External Battery Power Bank for iPad Air, mini, iPho
  • Holds charge for a long period. Great product. Can charge two devices simultaneously; although it slows down the charging time.
  • 2014-07-21

Rosa A Ramirez
  • 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
  • It's better than i expected.
  • 2014-07-21

Tamer
  • excellent
  • Very good
  • 2014-07-20
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Customer FAQ

Q1.  Can I use USB cables othan than those provided with my Anker external battery?
To ensure complete safety and best performance, we strongly recommend using your device’s original cable, a third-party certified cable (such as MFI) or our included cable.
Q2.  Does it work with the new iPhone 5s, 5c?
Yes. But the Apple connector is not included. Please use your device's original cable.
Q3.  Anker external batteries' efficiency.
ALL external batteries lose power due to voltage conversion and circuit resistance.

Approximately 20% of Astro 2nd Generation external battery’s total capacity is consumed, including power lost from circuit heat and voltage conversion within the external battery (approximately 6%) and the charging cable and your device (approximately 14%). This efficiency rate is 15% higher than the industry average of 35%.

Older Astro batteries have lose approximately 30%.

According to industrial standards, all external batteries are labeled based on their raw cells capacity not efficiency. Like others, we are following this standard.
Q4.  How long will the battery lasts while not in use?
Generally, most of our external batteries' 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:
1. Charge and recharge it at least once every 3-4 months.
2. Do not over-charge or over-discharge it. It is best to keep it charged between 5%-95%.
Q5.  Can Anker external batteries be used for international travel?
Yes. Be sure the USB adapter you bring with is compatible with the voltage of the country you will be traveling to. An adapter's voltage input is usually printed on the adapter.
Q6.  Can external batteries be taken on board airplanes?
Yes, all Anker external batteries 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 Pro 20000mAh (74 wh) which is lower than the above 100 wh limit.
Q7.  What can I do if I lose the provided accessories?
Please check to see if you have extras or contact us via email at support@ianker.com for help.
Q8.  Anker external batteries' compatibility
Anker external batteries are compatible with Android and Apple smartphones and tablets except Asus devices ( Apple connectors are not included, please use your devices original cable).
Q9.  Can it be charged and charge other devices at the same time?
Yes, this battery can simultaneously charge and discharge. However, constant pass-through charging may affect the battery’s lifespan.
Q10.  Do I need to press the power button when charging other devices?
Yes.
Q11.  Do I need a certain type of charger to recharge this Anker external battery?
No, most USB AC chargers or a laptop or PC's USB port can recharge this battery. A minority of USB AC adapters are not compatible. If you find your charger is not working, please try a different charging option.
Q12.  How long does it take to fully charge this Anker external battery?
8-9 hours with a 1.5A output charger. Using a charger with a lower current output will prolong the charge time.
Q13.  How to turn the flashlight on and off?
Please press the power button twice to turn the flashlight on or off.
Q14.  Can I charge two devices at the same time?
Yes. But please note that when using 2 output ports simultaneously, the total output current will not exceed 3A.
Q15.  Can it charge Samsung or Asus tablets?
No.
Q16.  What if the Astro E4 fails to recharge?
a. Check that the adapter is connected securely, or replace it if the current one is not functioning normally.
b. Check that the USB cable is connected securely, or replace it if the current one is not functioning normally.
c. Please email us at support@ianker.com duiring your 18-month warranty period if the provided acessories or the external battery have problems.
Q17.  What if the Astro E4 fails to charge other electronic devices?
a. Check that the connection between the Astro E4 and the electronic device is secure, or replace the cable if the current one is not functioning normally.
b. Check that the Astro E4 still holds a charge, and recharge it when the remaining power is low.
c. Check that the Astro E4's voltage is compatible with your device's.
d. Please email us at support@ianker.com duiring your 18-month warranty period if the provided acessories or the external battery have problems.
Q18.  How can I identify the voltage specification for my device?
Please refer to your device's instruction manual, product labeling, or adapter to find this information.

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Latest Post

Bonnie Lee
Hi received the Astro E4 external battery as a gift.  I can't find any information on which port I should use to charge mySamsung Note II andKindle Fire HDX.Also, I don't see how to turn this unit off or how to use the flashlight.Please advise. Thank you
Replies(1) Collapse Report as spam Jul 22, 2014 at 10:55 PM
ANKER Team


You should check the output of your device's OEM chargers and then use the Astro output that is closest to this number.

The device should turn itself off if you're not using it or charging it and the flashlight is operated by a double click of the button.
Reply Report as spam Jul 23, 2014 at 3:30 AM
my astro E4 has been
my astro E4 has been charging for DAYS and only lights up two blue dots if i unplug it and replug it in. does this mean its broken? i barely ever had to charge that thing and now its junk.......hardly chrages my iphone at all anymore and i used ot be ablew to get it to charge my phone like 7 times...... what do i do???
Replies(1) Collapse Report as spam Jul 13, 2014 at 10:57 PM
ANKER Team


If you've tried charging your E4 using different cables and wall chargers and its still not accepting a charge then it could indicate a fault.

Please give our customer service guys a shout at support@ianker.com and let them know. Remember, all our products have an 18 month warranty.
Reply Report as spam Jul 14, 2014 at 3:00 AM
Solar charging?
Can I charge / trickle charge this external battery with a solar panel? Are there any issues that I need to be aware of?
Replies(2) Collapse Report as spam Jul 12, 2014 at 1:19 PM
Andy Faulkner
The Anker 14 watt charger  will do it,  the 8 watt also but charging will take longer
Reply Report as spam Jul 13, 2014 at 2:52 AM
ANKER Team


As long as the solar charger can output 5V/1.5A then you'll have no trouble at all!

If the charger you're using can't quite output that amount then it may still charge but it could be unstable or charge slowly.
Reply Report as spam Jul 14, 2014 at 2:30 AM
Anker E4 13000mAh External Battery
 purchased my E4 from Amazon, and have been incredibly pleased with its performance. I use the external battery charger nearly everyday, but recently, I can't seem to get the E4 to charge to 100% (even when plugged in to charge throughout the night). It used to fully charge in only an hour (or two) when it was connected to the USB wall adapter. I've looked for information on this malfunction, but have come up with no explanation as to why my ASTRO E4 is not holding a full charge anymore i.e. the charging indicator lights blink only up to the 3rd blue light, and then that light will repeatedly blink without ever moving to the fourth and final blue light, which would indicate a full charge. Please advise. Thank you.  
Replies(2) Collapse Report as spam Jun 22, 2014 at 9:01 AM
ANKER Team


Could you try charging the E4 with a different USB wall charger and cable please? Also a computer's USB port would work fine.

If you're still having issues after this then give our customer service team a shout at support@ianker.com and let them know. They'll be able to help you further.
Reply Report as spam Jun 23, 2014 at 3:00 AM
joxean
As a stay at the end, you work well with the signs?
Reply Report as spam Jun 28, 2014 at 5:19 AM
gogod
googoosos
Replies(1) Collapse Report as spam Jun 13, 2014 at 4:42 AM
Giocoollopez
what is your question?
Reply Report as spam Jun 14, 2014 at 11:55 AM
Asus Nexus 7 2013
Hi, I do not speak much English, I was wondering .. This battery can charge my Asus Nexus 7 2013, from 3950mah? thanks
Replies(2) Collapse Report as spam Jun 5, 2014 at 1:55 PM
Giocoollopez
Yes it can charge your nexus 7
Reply Report as spam Jun 14, 2014 at 11:56 AM
ANKER Team


Yes! It should charge your Nexus 7 (if it has a capacity of 3950mAh) just over 2 times.
Reply Report as spam Jun 6, 2014 at 4:00 AM
Mark Phillips
I have an Astro E4 13000. It has just stopped charging and displays a single flashing blue light. What do I need to do fix the problem?
Replies(4) Collapse Report as spam May 30, 2014 at 4:23 AM
ANKER Team


First troubleshooting tip in this situation is to try charging it up with a different cable and wall charger as well as a computer's USB port if possible.

If you're still having issues then get in touch with our customer support guys at support@ianker.com and they'll be able to help you further as well as process a refund or replacement if required.
Reply Report as spam Jun 2, 2014 at 8:30 PM
joxean
I have the E5 15000 and do the following steps are the instructions:Pressed the button to see how much charge is.I continued to connect the usb socket in my case the original head of Samsung 2A.After I connect the micro usb on drums.And when it is full charged four LEDs remain lit.Use these steps to see if you feel the same.
Reply Report as spam May 30, 2014 at 7:00 AM
AnkerMember431
If it isn't working right, send an email to support@ianker.com and they can help you.
Reply Report as spam May 30, 2014 at 9:05 PM
gherardini
If it still does not work correctly, send a message to the Anker support account at support@ianker.com . They are very good about responding and working with you to resolve the problem.
Reply Report as spam May 30, 2014 at 9:11 AM
USB ports

I've just taken delivery of my Astro E4 and I would be grateful if you could explain the difference between the two USB ports. One is 40mAh and the other 80mAh but I haven't a clue what this means! I shall be using it to charge 3 Apple products - iPhone 5S and 4S, and an iPod.

Many thanks in anticipation!

Replies(4) Collapse Report as spam May 14, 2014 at 10:29 AM
Fire and Ice

2A and 1A port. A is amperage or current. Use the 2A when possible for fast charging as it'll charge your iphones faster. 2A is also needed for tablets.

Reply Report as spam May 14, 2014 at 12:58 PM
joxean

2A for tablets and fast loading mobile.
1A for mobile.

Reply Report as spam May 14, 2014 at 3:58 PM
ANKER Team


There are two output ports on the E4, one is 1A and the other is 2A.

The 2A port is designed for Apple products and the 1A port is designed for Android products. You can still use either port for either device but charging speeds may be slower in a device's non native port.
Reply Report as spam May 15, 2014 at 12:00 AM
John R-W

Many thanks to all for the explanations! I'm charging my iPhone 5S right now and very impressed with the speed!!

Reply Report as spam May 15, 2014 at 7:34 AM
Charge E4 13000mAh with 2.1A o/p charger

Hi, Greetings...

I am planning to purchase Anker Astro E4 13000mAh External Battery. I have read the queries asked by other customers and I learnt that we need to have a 5V / 1.5A charger to recharge the device. If I already have a 5V/2.1A charging adapter, will it harm Anker Astro E4 13000mAh External Battery or is it safe to use 5V/2.1A charger to recharge the device.

Kindly advise.

Thanks in Advance, 

Utkarsh

Replies(1) Collapse Report as spam May 11, 2014 at 11:00 AM
ANKER Team


The 5V/2.1A charger won't cause any damage to the E4 and will charge it fine.

It may not be quite as fast as with a 5V/1.5A charger, which is the optimum level, but there's nothing to worry about in terms of damage.
Reply Report as spam May 12, 2014 at 5:00 AM
Denver

Have had for less than a year.  First 2-3 months worked great.  Now cannot  get it to charge.  Wife purchased same unit.  Has same problem.  What's up?

Replies(3) Collapse Report as spam May 8, 2014 at 8:05 PM
gherardini

Anker offer an 18 month warranty on their items. Send them a message to support@ianker.com and explain to them what's going on. They are very responsive.

Reply Report as spam May 8, 2014 at 9:23 PM
joxean

It is best to contact Anker.
And the solution you seek.

Reply Report as spam May 9, 2014 at 1:51 AM
ANKER Team


I am sorry to hear that. As the item is still covered under the warranty, may I ask if you could send us an email directly to support@ianker.com with the 2 order numbers so that we can better assist you?
Reply Report as spam Jun 6, 2014 at 2:16 AM
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