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Anker Astro E4 13000mAh External Battery

Anker Astro E4 13000mAh External Battery

Charger- 40W 5-port desktop charger

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

William W. Lewis III voider of warranties, i.
  • This thing is a weekend saver and it loves America
  • And fun. This device also loves fun. I initially purchased the Anker battery to keep my iPhone powered during all 3 days of the Formula 1 race at Circuit of the America's in Austin Texas last year (2013) while running apps and consuming lots of bandwidth. Job done and then some! More recently, the Anker battery (on a single charge) kept my iPhone (and several friend's iPhones) powered for an entire weekend of NASCAR camping fun at the Texas Motor Speedway, including a special bonus 4th day, when the Sunday race was rescheduled to Monday. Finally, the Anker battery (on a single charge) kept my iPhone powered and happy throughout an entire MS150 trip from Houston to Austin during which time I kept the phone screen on and on high brightness to track my pace, speed, heart rate, cadence (via Abvio RunMeter) while streaming music to a bluetooth speaker. This Anker battery is extremely useful and it loves America. And fun. It also loves fun.
  • 2014-04-22

William Everett
  • Great for travel or sports events like all day tournaments.
  • Greater for events that last several hours. Used to charge Galaxy S4 and IPhone 5. Took about 1hr to charge Galaxy S4 from 30% to full.
  • 2014-04-22

Stacy Amazon Junkie
  • Battery Dead? Zap! No problem!
  • Have you ever grabbed your cell phone and hurried out the door, only to discover that you forgot to charge it the night before? Or hooked up your iPod to listen to music and realize that the cord was unplugged by your pet and now you have no tunes to groove out to while commuting to work? Well kids, worry no more, as the Anker Astro E4 will supply the juice that your gadget needs, both charging the device AND supplying power to use it during the charge! And let me tell you, that is just swell! Appearance & Construction The Anker Astro E4 is a sleek device that is roughly the size of your hand. It is also a thing of simplicity: four lights and a button on the front, two USB out ports on top, and a micro-USB port on the left side. The case has rounded edges and is very smooth, but not so smooth as to slide out of your grasp. Also inclulded in the package is a small Nylon drawstring bag, a USB charging cord with a female plug receptor on one end, and three different charging heads (iPod/iPad/iPhone, Mini- and Micro-USB) that have male adapters to plug into the female port on the USB cord. The three adapters are, as can be inferred, interchangeable on the plug so that you can use the battery to power/charge a myriad of devices; in my usage I was able to charge my iPod Touch 4th Gen, my Samsung Galaxy SII cell phone, as well as my Logitech wireless headset, all with no issues! In terms of durability, the Anker Astro E4 is definitely constructed to be (slightly) abused. While I would certainly never sling it across a room or casually toss it into a bag, the E4 endured being jostled in my haversack, bumped around on the center console of my car while charging my cell phone, and sat in the back seat of my car for about two hours in direct sunlight (NOT recommended; I accidentally left it out), only to hook it up to my gadget and see that it worked fine. The only complaint that I have in regard to the construction of the E4 is not so much with the battery itself, but the nylon drawstring bag included in the packaging for storage. As I mentioned earlier, the case for the battery is rather smooth and sleek. The nylon bag is of a mesh weave, similar to the type that you see used for football/basketball jerseys. As a consequence the battery is VERY slippery when placed in this bag. It is imperative that if you use this bag to store/transport your battery that you make sure that the drawstring is tight and the spring clip to hold the drawstring is in place. Otherwise your battery WILL slip out of the bag and onto the floor. Also, the bag is only big enough to store the battery itself; the charging cable and three adapters will have to be kept separate. In short, I recommend that you find another case and/or bag to use so that all of your battery items can be transported in one container. This annoyance is big enough that I removed one star from the rating; the lack of ease with which to keep stuff that is rather important for the function of the device is a drawback. Use Using the Anker Astro E4 External Battery Charger is a cinch: plug the USB end of the included charging cable into one of the USB ports on the top of the battery. Next, choose the adapter head that will fit your gadget and plug it into the female receptor on the other end of the charging cable. Connect the end of the charging cable with the correct adapter into your device, and then press the grey, oval button on the front of the E4: the blue lights directly above the button should light up. A quick note about the lights: there are four blue lights across the front of the battery. These lights indicate how much power that the battery has left to "juice" your gadgets. The instruction book included with the device states that roughly 30% battery power is consumed per complete-charging cycle of a gadget (that is, if your phone is dead, from 0-100% power takes 30% of the charge of the E4 to power your device). As the Anker Astro E4 starts losing its charge, the lights will turn off one-by-one. For this reason, make sure that you keep your battery charged up and ready to use. My personal experience is that the charge will last at least two weeks with no use. And, of course, if you use the E4, don't forget to hook it up (using the micro-USB port on the left side and the charging cable, only using the USB end to hook into a USB port on your computer or USB hub - or into a USB AC adapter, if you buy one). Okay, back to the charging! The E4 is not a "quick charge" external battery device. While it will give your phone/other gadget a full charge, it does so in roughly a half-hour to an hour, depending upon the device (when the lights on the front of the battery turn off, your device is charged). I found that the charging time is a bit quicker than my usual charging through the device's cable, but the battery is definitely not designed to be used if you want a super-fast full charge. In summation: if you realize that you forgot to charge your phone and are headed out the door, you will need to take the battery with you and give it some time in order to acquire a full charge. For this reason the E4 should only be used as a back-up charging device for those times when you truly need it. Using it as a routine method of powering your devices is not significantly fast enough to warrant this becoming a replacement for traditional charging methods. In Summation It is probably simplest to delineate the Pros/Cons for the Anker Astro E4 External Battery Charger below: Pros: 1) The various adapters fit a myriad of devices, ranging from Apple to Android and many things in between, making this truly utilitarian; 2) The battery is light-weight and can slide easily into a purse or briefcase for transport; 3) Holds its own charge for at least two weeks with no use; 4) While it says that each full-charge for a device uses 30% of its own charge, I found that to be significantly overstated: I was able to successfully charge four different "dead" gadgets and it still had two lights on the front, indicating that it could charge at LEAST one more "dead" device easily; 5) Is very simple to use: hook up the charging cable to the top, add the appropriate adapter head for your device, plug it in, turn it on, and voìla! Cons: 1) The included storage pouch is nylon and the battery WILL slide out of it unless the drawstring is cinched tightly; 2) The storage pouch is also only large enough to accommodate the battery itself; you will need to find a separate pouch to store the USB charging cable and the adapter heads; 3) Doesn't come with a USB Cable AC plug, so the only charging method for the battery itself is through a USB port on your computer/USB hub. While the "Cons" of this product are certainly an annoyance, they are not enough for me to say the product stinks. The "Pros" definitely outweigh the negatives. Thus, if you are seeking an emergency backup for those times that you forgot to hook up your phone or a power outage meant your iPod didn't charge the night before, the Anker Astro E4 External Battery Charger is definitely for you. It is durable, sleek, and moderately priced, and when you combine those facts with the ability of the battery to charge a myriad of devices by interchangeable adapters, this external battery charger becomes a steal! So, if you are gadget-afflicted (like I am), click the "Add to Cart" button now! Having this battery around takes a bit of stress off, knowing that should something happen and my phone/iPod not get charged overnight, I still have a way to charge it without having to disconnect the device's charging cables and dragging them with me while I run errands. I slip the phone and battery into my bag and go about my day! PS - Anker provided me with this battery at no charge to provide honest feedback through reviews.
  • 2014-04-21

Manuel Modiano
  • Great product
  • Awesome! No longer have to worry about the iPhone dying every 2 hours! This thing will keep it going all day!
  • 2014-04-19

David Paine
  • Very nice
  • This is small and lightweight enough that I could easily carry in my backpack on a recent trip I took where there was no power. I used it to keep my phone charged, but for some reason that I have yet to figure out it would not charge my camera. I will try some different cords and see if that makes a difference.
  • 2014-04-18
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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 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?
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?
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 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 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

for NOTE 3 users

I recently bought this product and am wondering what kind of expectations I should have with it.

The Anker has 13000mAh capacity, and the note 3 battery is 3200mAh. Does that mean it should charge my Note 3 three full times before I need to charge it?

Does it make a difference if I use the 1A or 2A port? obviously 2A will charge faster but will it also drain the Anker quicker as well? What is recommended?



Replies(2) Collapse Report as spam Apr 24, 2014 at 11:29 AM

Should, theoretically, though there is loss through wires, connections, etc. But mathematically it should be close.

2A will charge faster, that's what you want. Yes, it will drain the Anker battery faster as you're putting the charge into the Note 3. But it charges faster. It'll still require a recharge after the same number of recharges regardless.

Reply Report as spam Apr 24, 2014 at 12:02 PM
Justin Rohr

It should do a little more than three, but you don't want to run your phone or the anker battery below 40% optimally, or 20% if needed, running these batteries lower than than is hard on them and takes away some of their life.

There will be some losses due to the circuitry having resistance etc.

Reply Report as spam Apr 24, 2014 at 12:11 PM
2A is not enough?


I got my Anker about 6 months ago, and with my old phone (Xperia Pro) it worked fine. But I just upgraded to a Samsung Galaxy Note 3, and it seems to not be powerful enough. When my phone is plugged in (either the 1A or 2A ports), the Anker seems to supply almost enough power to keep the phone charged (the charge level drops by 1% in a couple of hours), but can't actually recharge it. As an emergency backup, this isn't very useful.

Can you tell me if any of the newer models will be able to actually charge my phone? I see some of them are advertised as supplying 4A now; but I'm cautious about buying one if I can't be sure it'll work.

Replies(3) Collapse Report as spam Apr 22, 2014 at 3:39 AM
The E4 should be capable of charging your Note 3. Give our customer service guys an email at and they'll sort any problems.
Reply Report as spam Apr 22, 2014 at 10:00 PM

2A is a *lot* of charging. Your Note 3 is *not* using 2A of input, so something else is going on. But Loki's right, check your cables. How fast is your Note 3 using it's full charge?

Reply Report as spam Apr 22, 2014 at 12:39 PM

I own a Samsung Galaxy Note 3 and my Anker Pro 10000mAh was able to charge it without problems. I say "was" because I forgot it on a holiday. I have now gotten an Astro Mini and it charges it excellently. The Astro Mini is rated at 5V 1A. I would recommend that you check your Samsung battery or its cable. Hope that helps?

Reply Report as spam Apr 22, 2014 at 4:30 AM

HAve a brand new ANKER Astro E4 13000mAh External Battery.  Used the inital charge to recharge iPad 4 Retina 1.5 times.  Now I have been recharging the Anker since Saturday night (it is now Monday morning).  Why is it taking so long?

Replies(3) Collapse Report as spam Apr 21, 2014 at 8:12 AM
Can you confirm the wall charger you're using is capable of giving 5V/1.5A?If you're still having trouble then get in touch with our customer service guys at, they'll be able to help you out.
Reply Report as spam Apr 21, 2014 at 11:30 PM

Check the mAh rating of your wall charger unit. If it's a 500 - 800 mAh unit, it will be a while. Better to use one that rated over 1000 mAh or 1 Ah.

Reply Report as spam Apr 21, 2014 at 1:14 PM

What do you use to charge it? It may take up to 30hours with a generic usb charger

Reply Report as spam Apr 21, 2014 at 9:06 AM
Note n7000

İs it compatible with note n7000?

Replies(2) Collapse Report as spam Mar 31, 2014 at 8:26 AM

Yes it will charge your Note phone with no problem.

Just use the supplied USB cable from your phone and you're good to go!

Reply Report as spam Mar 31, 2014 at 7:10 PM
Yep! You'll be absolutely fine charging your Note N7000 with the E4.
Reply Report as spam Apr 8, 2014 at 4:57 AM
Alternative sources

I continue to be pleased to find more Anker products available at Newegg, like this one.  Kudos!

Replies(9) Collapse Report as spam Mar 31, 2014 at 1:04 AM

Quote From gherardini:under current law they would have to create a physical presence in the buyer's state. But note that Amazon doesn't collect tax on everything they sell.

Reply Report as spam Mar 31, 2014 at 12:16 PM

Newegg is great. 

I like Newegg better than Amazon.

No tax and free 2 day shipping with Shoprunner!

Reply Report as spam Mar 31, 2014 at 1:06 AM

Amazon's free shipping will soon cost $100 per/year.  Granted that brings other benefits.  Sadly only a few Anker products are currently available at Newegg but I trust Anker is in negotiations.

Reply Report as spam Mar 31, 2014 at 1:11 AM

Newegg's Shoprunner free 2 day shipping costs much less and Shoprunner is usuable at many more retailers than just Newegg, they're accepted by hundred of retailers too

Reply Report as spam Mar 31, 2014 at 1:13 AM

Really? Never heard of Shoprunner but I get free shipping, no tax and usually get pretty fast delivery.  They must like me :-)

Reply Report as spam Mar 31, 2014 at 1:16 AM


Well you're missing out on something better than Amazon prime for shipping

Reply Report as spam Mar 31, 2014 at 1:24 AM

Quote From HammerNexus: ??

Reply Report as spam Mar 31, 2014 at 1:26 AM

Quote From gherardini: I don't think they can for now because Newegg only has warehouses in New Jersey, Tennessee, and California.

As long as you don't like in one of those states, you're golden for now smiley


So glad I don't because my tech addition would cost a fortune on Taxes.


Hope Fry's or Microcenter starts carrying Anker products soon too. 

Reply Report as spam Mar 31, 2014 at 7:22 PM

Sadly, one day they'll find a way to get smaller online retailers to collecting tax, too. Just like Amazon. But let's enjoy it while we can and wait for bigger selection. Yay!

Reply Report as spam Mar 31, 2014 at 8:44 AM
Issues with 2A port.


I have a Nokia Lumia 810. I can try any USB cable possible, but it just won't charge off the 2A port on this device. It will, however, charge just fine, with any USB cable off the 1A port. Is this a common issue with charging smart devices off the 2A port, or is my phone being silly?


Replies(6) Collapse Report as spam Mar 21, 2014 at 2:32 PM

It doesn't sound like your phine, it sounds more like the 2A USB port is bad. Will anything charge off of the 2A port? IF not then send a message at and let them know. Anker's pretty good about standing behind their devices.

Reply Report as spam Mar 21, 2014 at 2:39 PM

Try a different USB cable. Some cables can't handle 2A

Reply Report as spam Mar 21, 2014 at 7:05 PM
Christian Wacker

Quote From gherardini:It looks like my Nexus 7 seems to charge off the 2A port, as long as a bunch of simple things like a keychain camera. Just the phone that isn't charging.
This was also replaced by Anker for this issue earlier (The 2A port was loose, so I assumed that it just wasn't making contact) I will probably have to test this with another few smartphones to see if it's an issue with it charging at 2A, if it's how the charger is detected by the phone, or some other issue.

Reply Report as spam Mar 21, 2014 at 8:30 PM

If the Nexus is charging fine, then it's probably not the battery. Once again, check cables and for loose connectors on your phone

Reply Report as spam Mar 21, 2014 at 11:11 PM
Christian Wacker

I have a few different cables. The Nexus will charge fine with the same cable that won't charge the Nokia. I will test later today with a few other Nokia phones that I have in storage, and see what happens. Could be this specific model that has issues with the battery.

Reply Report as spam Mar 22, 2014 at 12:03 PM

Quote From Christian Wacker: Not sure. But I've always had good luck with Anker products. Never had a defective one.


If you do have a problem and it doesn't work, just contact Anker adn they'll replace it. 

Anker has a great 18 month warranty plan

Reply Report as spam Mar 22, 2014 at 3:04 PM
Galaxy Note 10.1 2014 edition
Hi I want to use this external battery for both my samsung galaxy s2 and the new Galaxy Note 10.1 2014 edition. From your information it looks like that would be a problem as the Galaxy Note 10.1 is not supported. Why is it not supported and what product would you recommend? Kind regards J
Replies(2) Collapse Report as spam Feb 21, 2014 at 9:31 AM
Christian Wacker

It should charge just fine, as long as the tablet is able to charge on at least 2 amps of power. This particular battery was released before the 10.1 2014 edition tablet was, so the product page has (probably) yet to be updated to include it.

Reply Report as spam Mar 21, 2014 at 2:34 PM

It is supported and will charge fine. The product page wasn't updated. But your tablet should have no problem charging with the micro USB cable and this battery! smiley

Reply Report as spam Mar 31, 2014 at 7:25 PM
Odd LED Pattern...
I use the E4 to charge my HTC One X. Sometimes when I connect it using 1A port and supplied cable and then turn on the E4. Each LED lights in turn on the E4 then goes out. The phone then does not charge. There is no mention of this LED pattern in the manual. What does it mean?
Replies(2) Collapse Report as spam Jan 26, 2014 at 7:13 AM
Thank you for contacting us! In order to assist you with the problem of your Astro E4, would you please contact our customer support at : Please be assured that you will receive quick and hassle-free service.
Reply Report as spam Feb 8, 2014 at 4:16 AM

Hmm that's really strange, did you get it fixed?

Reply Report as spam Mar 31, 2014 at 7:35 PM
Will this work with microsoft surface?
Will this work with Microsoft Surface?
Replies(2) Collapse Report as spam Jan 23, 2014 at 4:26 PM
Yes, just utilize the 2A port of this external battery to charge the Surface.
Reply Report as spam Jan 23, 2014 at 5:34 PM
Sorry, none of our products are currently compatible with the Microsoft Surface.
Reply Report as spam Jan 27, 2014 at 1:52 AM
asus nexus 7
my tablet is asus nexus 7, is it compatable?
Replies(2) Collapse Report as spam Jan 2, 2014 at 2:29 PM
Yes it is definitely compatible with that too as it uses a micro usb to charge.
Reply Report as spam Jan 2, 2014 at 3:12 PM
Thank you for contacting us! We would like to confirm that our Anker Astro E4 13000mAh External Battery is compatible with the Asus Nexus 7.
Reply Report as spam Jan 12, 2014 at 9:11 PM
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