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

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

60W wall charger - product

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 Center Pin

Just bought the Astro Pro 2.  Is the DC output Center Pin negative or positive? My device requires center pin negative and I don't want to damage it.    Thanks.

 

Replies(1) Collapse Report as spam Feb 24, 2015 at 9:14 PM
ANKER Team
The centre pin is positive.

Please give our customer service team a shout at support@ianker.com for further help.
Reply Report as spam Feb 25, 2015 at 2:30 AM
Display not working

I tried to charge a Vuse electronic Cigarette with my Anker Astro Pro2 series 20000mAh, and now the display doesn't work. I'm not getting a percentage read. Is there a way to reset the Anker device?

It still seems to be charing my iPhone properly. I just can't see how much of a charge is left on the external power device itself. I am afraid that the eCigarette charger broke the Anker, this makes me sad. I will certainly not attempt to charge the Vuse cigarette with the Anker again. I'm afraid it might be a fire hazzard. 

Please let me know if there is any way to 'reboot' the Anker to get the display working again.

Replies(3) Collapse Report as spam Feb 22, 2015 at 9:33 PM
whynothim

Hopefully this will be helpful, I pulled it from the manual

Reply Report as spam Feb 22, 2015 at 10:04 PM
TechToyWizard

RJR is pretty specific that only their charger will work with Vuse. There's some pretty complicated stuff going on inside. Try asking Anker if they will cover you - email support@ianker.com

Reply Report as spam Feb 23, 2015 at 1:08 AM
ANKER Team
Your eCigarette would not damage the Astro.

Please give our customer service team a shout at support@ianker.com, they'll be able to help you further.
Reply Report as spam Feb 25, 2015 at 2:00 AM
DC Input cable

I have lost the DC input cable for this device, can you tell me what the model is and the specification to get the replacement cable so I can recharge my "Anker 2nd Gen Astro Pro2 20000mAh Quad-Port External Battery" ?

Replies(3) Collapse Report as spam Feb 21, 2015 at 3:07 PM
ANKER Team
It's a 5.5*2.1mm input port. The charger should have a 12V/2A output.
Reply Report as spam Feb 25, 2015 at 1:30 AM
ClarenceBeeks89

ANKER Team...Where can you buy this cable/transformer? On ianker.com?

Reply Report as spam Feb 27, 2015 at 5:58 PM
ClarenceBeeks89

Quote From ClarenceBeeks89...I am trying to recharge my "Anker 2nd Gen Astro Pro2 20000mAh Quad-Port External Battery" and it seems like it takes forever to charge the unit.

Reply Report as spam Feb 27, 2015 at 6:02 PM
Size of the DC output

What is the size of the DC output plug on this? I currently have a cord that is 5.5 x 2.5 mm, and was wondering what size adapter I'd need/

Replies(1) Collapse Report as spam Feb 19, 2015 at 5:09 PM
ANKER Team
The output port is 4.3*1.65mm.
Reply Report as spam Feb 24, 2015 at 10:30 PM
Will this power my device?

Hello!  I have a device that has a power supply with this rating: 12V DC 0.4 A max output. Center pin negative. Will this battery work in place of the power supply?

 

Replies(2) Collapse Report as spam Feb 18, 2015 at 10:11 PM
ANKER Team
Yes, it should work just fine as long as the power draw stays above 0.05A.
Reply Report as spam Feb 19, 2015 at 1:00 AM
HeinoM

That's great!  So, just to be clear, the unit adjusts its output based on the draw it receives? There's no danger of overloading or ruining my device? Also,   is the center pin negative, or will I need to purchase an adaptor?  Thanks!

Reply Report as spam Feb 19, 2015 at 10:24 AM
laptop?

is it usable for maobiles and laptop?

Replies(3) Collapse Report as spam Feb 18, 2015 at 12:05 PM
XM4T1C

Hi,

Yes, it will work on both, mobile and laptop.

Reply Report as spam Feb 18, 2015 at 12:37 PM
gherardini

Some. The Astro Pro2 1st gen supports more laptop models. But it is difficult to find. eBay has some occasionally.

Reply Report as spam Feb 18, 2015 at 1:38 PM
ANKER Team
Yes, it can be used for either.

You'll need to confirm that the 12V/1.5A output of the Astro is powerful enough to charge your laptop though.
Reply Report as spam Feb 19, 2015 at 12:30 AM
Solid. Maybe a bit fragile.

I've really put this battery through the wringer, and it's done an admirable jobof keeping up with me.  It's still in great overall shape and works just fine.  My only issue with it is that the LCD broke, so I can't really tell how much of a charge it has left.  I take this battery backpacking with me and the issue with the LCD happened one night when temps got down to 45 degrees or so.  It still juices up fine, and charges my devices as asked.  I just do my best to charge it up when I think it might be near empty.  Other than the LCD, it's solid.

Replies(2) Collapse Report as spam Feb 16, 2015 at 4:11 PM
gherardini

Epic. 45 isn't really that cold either, maybe just brittle as it shouldn't have frozen. I keep a battery in a pigeon box at work outside where we have to keep our cellular devices. Gets into the 20s often, never have any problems with my E4, but no LCD either.

Reply Report as spam Feb 16, 2015 at 6:13 PM
ANKER Team
The battery should be able to tolerate lower temperatures than that.

Give our customer service guys a shout at support@ianker.com and they'll be able to help you further.
Reply Report as spam Feb 16, 2015 at 9:30 PM
TASCAM

Hi, 

Does this charger work finde with the sound recorder Tascam DR-70D? It has a mini-USB port for external batteries. If it depends on different characteristics, which of them should I take into account? I will use it with phantom power mics, if that's important to know if it works or not.

http://tascam.com/product/dr-70d/specifications/

Thank you in advance!

Replies(3) Collapse Report as spam Feb 16, 2015 at 7:28 AM
TechToyWizard

Not to take anything away from Anker but what benefit would you gain with the Anker over's Tascam's own battery pack which costs half the price and is certified to work? I have a DR-series recorder and I would be picky about introducing any non-OEM products that could affect performance of such a fine device.

Reply Report as spam Feb 16, 2015 at 1:13 PM
XM4T1C

Hi,

It is difficult for me to answer your question because I have poor knowledge about Tascam.

My recommendation is to send a message at support@ianker.com because they will answer you perfectly.

Have a nice day!

Reply Report as spam Feb 16, 2015 at 8:18 AM
ANKER Team
It's a 5W power input so it should be fine!

For a more specific answer and more help then give our customer service guys a shout at support@ianker.com with some more information.
Reply Report as spam Feb 16, 2015 at 9:00 PM
Samsung Note Pro 12.2

Does it charge the Samsung Note Pro while the tablet is working? or it need to be shutoff to accept charge? 

Replies(3) Collapse Report as spam Feb 14, 2015 at 12:18 PM
ANKER Team
It'll work just like the Samsung's wall charger. You can use the device as it is being recharged.
Reply Report as spam Feb 14, 2015 at 9:30 PM
gherardini

It will just charge slower than if the Note is off.

Reply Report as spam Feb 15, 2015 at 9:52 AM
Pedro Ferreira

Hi,

Thankyou both as i notice it charges but the battery simbol is a cross like it wasn't  on charge 

Reply Report as spam Feb 16, 2015 at 5:13 PM
Compatibility question

Will any/which extermal battery will work with the Sandisk Connect Media Drive?

Replies(1) Collapse Report as spam Feb 14, 2015 at 12:14 AM
ANKER Team
What is the standard input of the Sandisk?

If you can get some more information to our customer service team at support@ianker.com then they'll be able to help out.
Reply Report as spam Feb 14, 2015 at 9:30 PM
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