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Anker 20W Dual-Port USB Wall Charger

Anker 20W Dual-Port USB Wall Charger

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Product Description

Travel-sized charging for two.

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.

Most Powerful Dual-Port

A category-high 20 watts / 4 amps through two ports lets you charge two phones or even two tablets together at top speed.

UL Certified Safe

Built with industry grade materials and premium circuitry, this product meets the rigorous safety standards of Underwriters Laboratories.

Travel Light

Over 15% smaller than the previous version, this compact adapter has a foldable plug and fits comfortably into a small purse or pocket.

Customer Reviews

  • Nice double charger.
  • It works great so far. I've used it to charge an iPad2 and an iPod. I would have preferred it to have an LED on it. I know there is a newer model with that option but it is also slightly larger. The build appears to be solid. Hopefully this Anker product will work as well as an Anker battery that I've had for a couple of years. I like that they have an 18 month warranty on their products.
  • 2015-10-09

The Pensmith
  • Five Stars
  • Worked exactly as expected.
  • 2015-10-09

  • Works Well.
  • Works Well.
  • 2015-10-09

Amazon Customer
  • It could charge faster but it is better for the longevity of the battery to charge slow
  • Charges my devices and external batteries to their full capacity. It could charge faster but it is better for the longevity of the battery to charge slow.
  • 2015-10-09

Paul Bowman
  • Started out great but....
  • Normally I'm very happy with ANKER stuff but this time, not so much.My 2 units exhibit the same issue....2 devices plugged in and in use when one outlet will stop working.Only quick solution is to unplug the devices and the cube from the ACand for whatever reason,flip the cube so the prongs are reversed into the AC outlet.Then it comes back on.Stays working for a week or 3 then I have to go through the exercise all over again.When it's working it's great...
  • 2015-10-09
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Customer FAQ

Q1.  Which charging port should I use to charge my device?
Thanks to Power IQ technology, each charging port can charge any device at full speed - there's no need to
find a specific port.
Q2.  What kind of USB charging cables should I use with this charger?
To ensure complete safety and best performance, we strongly recommend using your device's original cable or a third-party certified cables (such as MFI).
Q3.  What if the Anker Dual-Port Wall Charger is not charging my device(s)?
A. Check to ensure that your device is USB-powered with an input current between 0 and 2.4 amps and a voltage input of 5V.
B. Use a different usb cable to double check. If the issue is our wall charger, please feel free to email us at to claim the 18 months warranty.
Q4.  What should I do if certain port/ports fail to work?
A. Please unplug the power cord from the back of the charger and any USB cables from the ports on the front.
B. After 15 minutes plug the power cord back in and try a different USB cable in the non-working port to see if the problem has been resolved.
C. Please email us at during your 18-month warranty if your device appears to be defective or you need further help.
Q5.  Why are my Samsung Galaxy S5, S4 and Note 3 devices charging slightly slower from this charger than the original charger that came with my device?
The heightened sensitivity of these devices to voltage input may in some cases slow their charging speed.
Q6.  My device charges at 1 Amp, will this charger’s 4 Amp output harm it?
No, the charger will only supply the maximum charge current allowed by your device up to 2.4 Amps from each port. That is to say, if you use a 2.4A charger with a device drawing 1A, it will only draw 1A.
Q7.   How do I check my device’s input current and voltage?
Please refer to your device’s user manual, original OEM charging adapter, or contact the manufacturer to determine this information
Q8.  When the charger is plugged into an outlet but has no devices plugged in, will it consume power? What is the standby power consumption?
The charger will consume almost no power in this state. Its standby power consumption is rated at <0.5W.
Q9.  Can I use this charger in other countries?
Yes, this charger is compatible with 100-240V. However, the plug is designed for the country it was originally shipped to. You may need to buy a universal Outlet Plug Adapter .

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Feel free to ask questions about this product here.
Your question will be posted on this page.
Anker Customer Support and the Anker user community will do their best to quickly answer your question.



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Latest Post

over charger

Will it over charger my device if I leave it the next day?

Replies(2) Collapse Report as spam Sep 29, 2015 at 9:24 AM

no it wont

Reply Report as spam Sep 29, 2015 at 10:52 AM
No, our chargers will not overcharge your device.
Reply Report as spam Sep 30, 2015 at 10:00 PM
Can I get an exchange


I bought a white dual port 20W wall charger thru amazon on 7/20/2015. I was very happy with the product until one of the electrical prongs broke off a couple of days ago. Of course I believe i did not mistreat the charger. I suspect the molded plastic that holds the metal prong was defective a cracked under minimal stress. It is not a piece I would feel safe gluing.

I like the unit and would welcome the opportunty to return it for an exchange of an identical model if your are agreeable. Amazon does not allow returns after 30 days. Is Anker agreeable to an exchange? If so my address is:

Gerald Lowrey

7173 Bayshore Drive

Milton FL  32583

Replies(5) Collapse Report as spam Sep 12, 2015 at 3:40 PM

contact SUPPORT@IANKER.COM they'll take care of you.

Reply Report as spam Sep 12, 2015 at 4:17 PM
Tony A.

Anker will send you a new one, just contact support with the serial number and order number.

Reply Report as spam Sep 12, 2015 at 7:49 PM
WiCkEd SLy

please remove your personal info from here since everyone can read this.

Reply Report as spam Sep 12, 2015 at 9:05 PM
Thank you for coming to us with your issue! By the sounds of it, the product is behaving unusually.

We are so sorry for the hassle this has caused you. Please contact us at at your earliest convenience. A customer service representative will tend to your specific situation from there.
Reply Report as spam Sep 14, 2015 at 2:30 AM

please contact Anker support they will be able to help you

Reply Report as spam Sep 29, 2015 at 10:54 AM
Another quality Anker product

This is a great wall charger for on the go. Has IQ technology to determine right power level and prevent over charging.

The charger is compact and yet well made, with a plug that can be retracted, provides ultimate portability.

I use heavily on road to charge my iPhone 6, ipad, Android tablet and more.

Definitely recommended. Anker makes quality products and never had an issue with prior purchases

Replies(4) Collapse Report as spam Aug 21, 2015 at 8:35 AM

i love these small travel chargers, they are fantastic.

Reply Report as spam Aug 21, 2015 at 9:32 AM

Thanks agree.  They lead the way and have one in back pack all the time.

Reply Report as spam Aug 21, 2015 at 1:15 PM

Is it too bulky or big?

Reply Report as spam Aug 22, 2015 at 1:03 PM
Thank you for this review of our charger :)
Reply Report as spam Aug 25, 2015 at 3:30 AM
Full speed but not QC 2.0

So, this will charge the G3 at the maximum rate for a non Quickcharge 2.0 charger; however, you can get even faster charging (off the top of my head around 30% faster) using one of the new Anker Quickcharge 2.0 compliant chargers.

Replies(2) Collapse Report as spam Jul 24, 2015 at 8:53 AM

its not QC2.0 its Power IQ

but there is QC2.0 charger from anker

Reply Report as spam Aug 1, 2015 at 12:31 PM
Scott Garfinkle

Umm yes, that was what I wrote, Gabriel. Try a different translation tool.

Reply Report as spam Aug 7, 2015 at 12:16 AM
LG G3?

Will the Anker 20W Dual-Port USB Wall Charger charge the LG G3 phone at full speed?

Replies(2) Collapse Report as spam Jul 24, 2015 at 6:33 AM
Yes, this will charge at full speed!
Reply Report as spam Jul 28, 2015 at 9:30 PM

yes it will charge at full speed 

Reply Report as spam Aug 1, 2015 at 12:32 PM
IPad and iPhone charging

I have a iPad 3 and and iPhone 6.  Can I charge both at the same time?  What will the output of each port be?

Replies(2) Collapse Report as spam May 24, 2015 at 5:03 PM

The maximum output of this device is 4 watts shared between two ports, each device (tablet and phone) will draw what is needed to charge it, but no more than the stated 4 watts. So, yes, you can charge both your phone and tablet at the same time without any worry.

Reply Report as spam May 24, 2015 at 7:52 PM

Yes it can be charged at the same time at 2.4Amp 


Reply Report as spam May 25, 2015 at 12:05 AM
DISCOUNT On Neewegg buy this for 10.99

Click here ->

Replies(2) Collapse Report as spam May 8, 2015 at 10:46 AM

Anker states their policy is returns and exchange service is limited to all purchases made directly from Anker. If you purchased through a different retailer, please contact them directly. Not sure I would want to give up a great warranty to save a few cents.

Reply Report as spam May 8, 2015 at 11:21 AM

thanks for the info


Reply Report as spam May 8, 2015 at 9:06 PM
great charger

works perfect and great quality

Replies(3) Collapse Report as spam Feb 12, 2015 at 9:40 AM

Its design limits the use of an oversized plug on the other wall outlet. Anker ought to shift the plug design 90 degrees. I hate power plugs that take up more than half the face plate.

Reply Report as spam Feb 12, 2015 at 11:11 AM

Spot on gherardini, I could not agree more. The plug orientation basically makes the charger useless. 

Reply Report as spam Feb 12, 2015 at 12:16 PM
We're glad to hear you're satisfied.
Reply Report as spam Feb 12, 2015 at 10:30 PM

will I get 2.4 A at the a same time? if i using two device?

Replies(2) Collapse Report as spam Feb 11, 2015 at 1:04 PM

depends on the two devices and their respective max inputs. if the devices you plug in can take 2.4A each, then the charger will step down to 2A per slot.

Reply Report as spam Feb 11, 2015 at 1:30 PM
The max output is 4A, which is shared between the ports.

If you have 2 2.4A input devices plugged in then the charger will output 2A to each.
Reply Report as spam Feb 11, 2015 at 8:30 PM
Anker 2nd Gen Astro E3

is it suitable for charging Anker 2nd Gen Astro E3?


Replies(3) Collapse Report as spam Feb 10, 2015 at 2:15 PM

Yes will be perfect match

Reply Report as spam Feb 10, 2015 at 7:16 PM

Yes, I've used it! Works great!

Reply Report as spam Feb 10, 2015 at 7:30 PM
Absolutely, it'll charge the E3 at the fastest speed possible.
Reply Report as spam Feb 10, 2015 at 9:30 PM
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