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Anker 2nd Gen Astro Pro2 20000mAh Quad-Port External Battery

Anker 2nd Gen Astro Pro2 20000mAh Quad-Port External Battery

Product Description

Tablet & phone compatibility? Universal max-speed charging? Power-packed & portable? The reinvented Astro Pro2 has it all.

Compatibility maximized.

Not all charging ports are created equal. Standard ports only communicate effectively with particular devices, like Apple OR Android, often limiting their recharge rate. But with PowerIQ™ technology, each port intelligently identifies your device to speak its unique charging language. So plug in any brand or model and enjoy compatibility that doesn’t limit your charging speed.

Uber powerful.

20000mAh of power keep you and your gear going, and going - and going. Add 1000% more battery life to an iPhone, 600% to your large-capacity phone (like a Galaxy S4), or 130-300% to your tablet (depending on its battery capacity) - all away from an outlet. What's more, the added energy efficiency gives you 10% more usable power than the previous generation and many standard alternatives.

Brilliant display.

Interacting with the all-new aluminum-cased beauty couldn't be easier. The LCD simplifies everything - displaying the remaining power (with precision down to the percent), output, input and voltage selection.

For optimal use.

• Please use your device’s original cable or a third-party certified one (such as MFi).
• Compatible with all Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices. The iPod nano, iPod Classic, HP TouchPad, LG G2, Asus tablets and some GPS and Bluetooth devices are not supported.

Customer FAQ

Q1.  Can I use a different USB cable rather than the cable that comes with the 2nd Gen Astro Pro2 20000mAh 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.  How long will the 2nd Gen Astro Pro2 20000mAh external battery take to be fully charged?
It takes around 5-6 hours to fully charge the battery with the included AC adapter.
Q3.  What devices are compatible with the 2nd Gen Astro Pro2 20000mAh external battery?
The battery is compatible with Android, Apple and almost all other devices charged via USB as well as devices that accept DC power up to 12V/1.5A. It has a maximum output of 4.0A shared between the ports with the USB ports able to deliver the full 4.0A.
Q4.  Does the 2nd Gen Astro Pro2 20000mAh 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 2nd Gen Astro Pro2 20000mAh 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 2nd Gen Astro Pro2 20000mAh external battery charge other devices while it is being charged?
Yes.
Q8.  My device charges at 1 Amp, will the 2nd Gen Astro Pro2 20000mAh external battery’s 4 Amp output harm it?
No, the external battery will only supply the maximum charge current allowed by your device.
Q9.  Can the 2nd Gen Astro Pro2 20000mAh external battery charge multiple devices simultaneously?
Yes, it can charge four devices simultaneously. But please note that when using 4 output ports simultaneously, the total output current will not exceed 4A.
Q10.  What does the LCD screen indicate when the 2nd Gen Astro Pro2 20000mAh external battery is charging itself or other devices?
When the battery is charging your devices, the LCD display will display the battery's capacity throughout the charging process and it will automatically shut off when all the connected devices are charged or cease to draw a current. When the battery is being charged, the LCD display will display the battery's capacity throughout the charging process and remain lit after fully charging.
Q11.  What voltage setting should I select to charge my phone or other USB-charged device?
All USB ports have an output of 5V so you don't need to select the voltage for charging USB devices. The voltage selector is for the DC output port.
Q12.  How long will the charge in the 2nd Gen Astro Pro2 20000mAh external battery last without being used?
Generally, the 2nd Gen Astro Pro2 20000mAh 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 2nd Gen Astro Pro2 20000mAh external battery be used for international travel?
Yes. However, you may need to use an adapter to allow the AC charger to go into the sockets of the country you're in.
Q14.  Can the 2nd Gen Astro Pro2 20000mAh external battery be taken on board airplanes?
Yes, all Anker external batteries including the 2nd Gen Astro Pro 20000mAh 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 2nd Gen Astro Pro2 20000mAh external battery can not be charged?
a. Check that the AC adapter is connected securely.
b. Try a different power adapter (12V/2A,size:5.5*2.1mm) with the battery if possible.
c. Please email us at support@ianker.com duiring your 18-month warranty period if the provided acessories or the external battery have problems.
Q16.  What should I do if the 2nd Gen Astro Pro2 20000mAh 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

DC output jack

What size of cable is required to use the dc output port? I need to purchase a replacement and need to know what I am looking for.

Replies(0) Collapse Report as spam Jan 25, 2015 at 6:19 AM
misplaced my power cable

has different size plugs on each end, can i get the specs so I can locate one? they all seem to have the same size on both ends.
 

Replies(0) Collapse Report as spam Jan 24, 2015 at 12:01 PM
Multivoltage port

What is use Multivoltage port ?

Replies(1) Collapse Report as spam Jan 22, 2015 at 9:19 AM
ANKER Team
You can use it to charge anything that requires less than 12V/1.5A! We have customers using it with all kinds of devices from sewing machines through to laptops.
Reply Report as spam Jan 22, 2015 at 11:00 PM
Auto-charge device unattended/recurring?

I use a tablet to display photos permanently without external power available. Can I use this anker product to maximize the tablet's usage time without manually initiating the charging process? The internal battery should be charged automatically in an unattended way and recurring, until the anker external battery is empty, without pressing a button at the external battery.

Replies(2) Collapse Report as spam Jan 20, 2015 at 10:08 AM
ANKER Team
You will need to press the button in order to commence charging but then it'll keep running until the Astro is out of power.
Reply Report as spam Jan 20, 2015 at 10:00 PM
AlanS

All the external chargers I have are initiated by pressing the charge button. When the battery is charged to 100% the charger turns itself off. It won't start charging again until I press the button.

Reply Report as spam Jan 20, 2015 at 2:53 PM
Li-ion or li-polymer battery

What type of battery using in this Anker product and other products?  I mean Cell, li-ion or li-po battery ?

Replies(2) Collapse Report as spam Jan 18, 2015 at 3:35 AM
ANKER Team
The 2nd Gen Pros are Li-poly.
Reply Report as spam Jan 19, 2015 at 4:00 AM
vovanquy73

How about the Anker 2nd Gen Astros ?

Reply Report as spam Jan 21, 2015 at 7:38 AM
port sizes and power on

Received this Product today. Item is brand new and upon opening the box, not at all touching the item, the LCD was already lit and reading 73% on the display. Is this normal?

Also what is the size of the output port?

Replies(3) Collapse Report as spam Jan 17, 2015 at 8:07 PM
kc

new batteries are never 100% its not good to store at 100% hence why

Reply Report as spam Jan 17, 2015 at 9:42 PM
TechToyWizard

Most rechargeable products I receive are already charged but never at 100% for obvious reasions. As far as the LCD being lit, if you received it with a 73% charge it certainly was not lit for long, most likely the ON switch got bumped during unpacking.

Reply Report as spam Jan 18, 2015 at 1:33 AM
ANKER Team
The charge level is normal but the lit LCD is a touch unusual. The item shouldn't have been lit, are you sure the button wasn't inadvertently tapped?

Please give our customer service guys a shout at support@ianker.com, they'll be able to help you further with this.
Reply Report as spam Jan 19, 2015 at 4:00 AM
Input charge voltage

Dear Anker Team, I saw that your product can be used internationally, but is there any concerns about the input voltage that can be used to charge the battery? 

Can the external battery be charged with 220 V network with the original Adapter (of course using also additional adapter for different sockets)?

Replies(2) Collapse Report as spam Jan 16, 2015 at 4:33 AM
gherardini

All of Anker's batteries will work with 110/220v

Reply Report as spam Jan 16, 2015 at 10:09 AM
ANKER Team
Yes, it'll work just fine as long as you have an adapter that allows it to go into the outlet.
Reply Report as spam Jan 19, 2015 at 1:00 AM
DC port size???

Need to know the size (mm) for the DC plug on the OUTPUT as no adapters were included:(

Thanks

Replies(2) Collapse Report as spam Jan 14, 2015 at 5:40 PM
ANKER Team
The DC output cable is 5.5*2.5mm.
Reply Report as spam Jan 14, 2015 at 9:30 PM
Stephen Fitzwater

Quote From ANKER Team: Thanks!

Reply Report as spam Jan 21, 2015 at 6:57 PM
Will this charge my macbook 2008 laptop?

I have a Macbook Late 2008 unibody with an anker battery see details:  Anker® New Laptop Battery for Apple A1278 A1280 Macbook 13-Inch Series, Aluminum Unibody (2008 Version) - 18 Months Warranty [Li-ion 6-cell 4200mAh]

My question is, if I bought this 20000 maH 2nd gen astro charger with a Bixnet magsafe Apple cable... will it charge my laptop?

 

Replies(1) Collapse Report as spam Jan 12, 2015 at 12:52 AM
ANKER Team
Probably not.

The max output of the 2nd Gen Pro2 is 12V/1.5A and this is unlikely to be enough for a laptop. If you check out out 1st Gen Pro2 though, that has a max output of 19V/3A and could work!
Reply Report as spam Jan 12, 2015 at 1:30 AM
Won't power up a small device

With 20,000 mAH this product seemed perfect to power my iOptron Skytracker (for photographing the stars) using the DC outlet: http://www.ioptron.com/index.cfm?select=productdetails&phid=6b0da2fb-2294-4805-bdcb-e534af12c1e2

However, it will power it for all of 30 seconds and then stop, why would this be?

Does the iOptron Skytracker not draw enough power?

If I connect my Dew Heater as well as (double DC plug adapter) the tracker it seems to work fine.

 

Replies(1) Collapse Report as spam Jan 11, 2015 at 10:16 PM
ANKER Team
Yes, it almost certainly is an issue with low power draw. If the Astro does not detect a draw over 0.05A for more than around 50 seconds then it'll switch off.

Apologies if this is an inconvenience and remember all our device have a 30 day returns period during which you can get a refund if you're not happy.
Reply Report as spam Jan 12, 2015 at 1:30 AM
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