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Anker Astro Pro2 20000mAh Multi-Voltage External Battery

Anker Astro Pro2 20000mAh Multi-Voltage External Battery

Product Description

Need to charge more than just your mobile phone? Invest in greater, more versatile power with the Anker Astro Pro2.

A beast of a battery.

When a standard external battery just won’t cut it, reach for the Astro Pro2. Packed with 20000mAh of capacity, this is one portable power pack that’s able to charge most phones 9 times, tablets more than once or a laptop one time.

Hugely versatile.

Choose from between DC 12V / 4A, 16V / 3.5A, 19V / 3A and USB 5V / 2.1A outputs for greater accessibility. The three voltage selections enable this external battery to charge a wide range of laptops – in addition to virtually all USB-charged devices.

Laptop compatibility criteria:

(1) voltage: 12V, 16V or 19V, (2) current: 3.5A or less, and (3) a laptop connector size that fits your power input (see below).

Laptop connector tip sizes (in mm):

6.00 x 4.25 - Sony VAIO
6.25 x 3.00 - Toshiba Satellite A105, M35
5.50 x 2.10 - Toshiba T1900, T1950, T4700 / AcerNote 330T , Acer Aspire 1200
4.75 x 1.70 - ASUS Eee 900, 1000
5.50 x 1.70 - Acer Aspire One AO722 AO725 AOD270
5.50 x 2.50 - ACER Aspire 1600, 5610
4.00 x 1.70 - HP Mini 1000/ 1100 PC Series
5.00 x 3.25 - Samsung NC10, N130, N310
7.40 x 5.00 - HP Pavilion DV6 / HP G60, G61/ HP Compaq CQ60, CQ61 / HP 550 / Dell inspiron 1525, 6000, E1505
7.90 x 5.40 - Lenovo ThinkPad T60, X60, R60

Customer Reviews

Harvey
  • Good but won't charge my computer
  • Charges my phone multiple times. Unfortunately, it won't charge my laptop because it requires 19.5 volts but my laptop will maintain its battery level while connected to the Anker.
  • 2014-12-15

Micah D Smith
  • Great little piece of equipment
  • Great little piece of equipment. I take a lot of long haul flights and having an extra computer battery is awesome. I had one of these suddenly stop working but Anker was quick with a replacement and has great tech support.
  • 2014-12-14

Leo
  • Five Stars
  • its nice and neat, it made from good materials
  • 2014-12-10

CL
  • I think this is an amazing amount of power for your USB devices without having ...
  • Not compatible with Microsoft Surface Pro 3, or any device that has a newer magnetic charging adapter. Otherwise, I think this is an amazing amount of power for your USB devices without having to deal with all the adapters.
  • 2014-12-05

Steven Soeder
  • I like the product
  • I bought this to use with my laptop to extend the battery when away from home/office. However, there doesn't seem a tip available to fit my Lenovo W530. I use it with my tablet though, which uses a micro-usb. I can use it with my phone too, but it's a bit too bulky for that; I have a smaller Anker charger for that.Overall, I like the product, but I really wish I could have used it with my laptop. :/
  • 2014-12-03
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Customer FAQ

Q1.  Can I use a different USB cable rather than the cable that comes with the 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 Astro Pro2 20000mAh external battery take to be fully charged?
It takes around 6-7 hours to fully charge the battery with the included AC adapter.
Q3.  What can I do if I lose the provided accessories?
If you don't have an original cable or spares that you can use then please contact us via email at support@ianker.com for help.
Q4.  What devices are compatible with the Astro Pro2 20000mAh external battery?
The battery is compatible with Android, Apple or other devices (including some laptops). The DC port has a max output of 19V/3A.
Q5.  Does the 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.
Q6.  Will the supplied Micro USB v2.0 connector 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.
Q7.  How can I identify your battery is compatible with my laptop?
Please make sure your laptop's input is the same or lower than the Anker Astro Pro2's and there is a tip in the list bellow that will fit your laptop.

Laptop compatibility criteria:
(1) voltage: 12V, 16V or 19V, (2) current: 3.5A or less, and (3) a laptop connector size that fits your power input (see below).

Laptop connector tip sizes (in mm):
A - 6.00*4.25 - Sony VAIO
B - 6.25*3.00 - Toshiba Satellite A105, M35
C - 5.50*2.10 - Toshiba T1900, T1950, T4700 / AcerNote 330T , Acer Aspire 1200
D - 4.75*1.70 - ASUS Eee 900, 1000
E - 5.50*1.70 - Acer Aspire One AO722 AO725 AOD270
F - 5.50*2.50 - ACER Aspire 1600, 5610
G - 4.00*1.70 - HP Mini 1000/ 1100 PC Series
H - 5.00*3.25 - Samsung NC10, N130, N310
J - 7.40*5.00 - HP Pavilion DV6 / HP G60, G61/ HP Compaq CQ60, CQ61 / HP 550 / Dell inspiron 1525, 6000, E1505
K - 7.90*5.40 - Lenovo ThinkPad T60, X60, R60

Or you can email us at support@ianker.com with the part number of the original charger that came with your laptop for help.
Q8.  What's the output efficiency of the 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.
Q9.  Can the Astro Pro2 20000mAh external battery charge other devices while it is being charged?
Yes.
Q10.  Can the Astro Pro2 20000mAh external battery charge multiple devices simultaneously?
Yes, it can charge two devices simultaneously, one using the DC output port and one using the USB output port.
Q11.  What do the LEDs indicate when the Astro Pro2 20000mAh external battery is charging itself or other devices?
When the battery is charging your devices, the LED indicator will remain unlit when charging other device. When the battery is being charged, the lights will flash repeatedly one by one to indicate progress. The LED indicator will all remain lit when the Astro Pro2 is fully charged.
Q12.  How long will the charge in the Astro Pro2 20000mAh external battery last without being used?
Generally, the 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 Astro Pro2 20000mAh external battery be used for international travel?
Yes. However, you may need to use an universal convert to work with the power adapter since the provided power plug is special for the country it was originally shipped to.
Q14.  Can the Astro Pro2 20000mAh external battery be taken on board airplanes?
Yes, all Anker external batteries including the Astro Pro2 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.

This external battery (Anker's largest external battery) is with 74 wh which is lower than the above 100 wh limit.
Q15.  What should I do if the Astro Pro2 20000mAh external battery can not be charged?
a. Check that the AC adapter is connected securely.
b. Try a different power adapter (15-19V/1.3A, size:5.5*2.1mm) with the battery for double checking.
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 Astro Pro2 20000mAhexternal 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

Great design
A really gret design for a battery. Good job !
Replies(1) Collapse Report as spam Dec 19, 2014 at 1:41 AM
TechToyWizard
Anker is known for their "great job". I just saw how they described it as "A beast of a battery".  Wish I had come up with that description!
Reply Report as spam Dec 19, 2014 at 1:56 AM
amperage
Hello My latptops charger is rated at 19V 6,32A. I know this battery is only capable of 19V 3A but that only means that it will charge slowly the laptop's battery when not in use / light use and not charge with heavy use. Like with any other electonrics and charger eg. phones can charge from 400mA to 2100mA, the difference is only the speed. Is that right? Or there is something special about laptop charging?
Replies(1) Collapse Report as spam Dec 11, 2014 at 11:10 AM
ANKER Team
If your charger is rated higher than the output of the Astro then we can't vouch for the performance at all.

It MAY charge, but some laptops will not accept any input lower than their native charger at all and some may recognise an incompatible charger.
Reply Report as spam Dec 12, 2014 at 3:00 AM
Dell Compatibility
Hi! I would like to make sure this product is 100% compatible with my Dell Precision M4700. Thanks!
Replies(0) Collapse Report as spam Dec 10, 2014 at 12:42 PM
dslr charging
CAN I CHARGE MY DSLR WITH IT ??IF NO THEN IS THERE ANY OTHER POWER BANK THAT CAN CHARGE MY DSLR??? PLEASE REPLY 
Replies(7) Collapse Report as spam Dec 9, 2014 at 12:50 AM
Peter Parker
dslr battery says 7.2v input and 1030 mah battery so will it help and @techtoy thnx dude 
Reply Report as spam Dec 12, 2014 at 11:36 PM
Peter Parker
@techtoywizard  i also heard that  dslr cannot b chargerd through usb so can anker e7 charge my nikon dlsr???
Reply Report as spam Dec 13, 2014 at 12:22 AM
gherardini
what are the charging requirements for your dslr? please answer.
Reply Report as spam Dec 9, 2014 at 3:03 PM
runtohell121
If you have the correct cable to charge it.. I don't see why it wouldn't charge it. 
Reply Report as spam Dec 9, 2014 at 3:09 AM
TechToyWizard
I would suggest the Anker Astro E7. Costs less, more output, smaller and more convenient form factor. The PRO 2 was really designed as a laptop charger. DSLR charging requirements don't differ much between brands and models of consumer DSLR's, I use my E7 with my Sony A7 and Canon 60D. For my high-end gear I use OEM chargers.
Reply Report as spam Dec 9, 2014 at 6:07 PM
Peter Parker
no actually it says that the voltage difference is important and cnat charge a dslr so i m asking .will this power bank charge my dslr
Reply Report as spam Dec 9, 2014 at 8:25 AM
ANKER Team
This depends on your DSLR!

If you can charge your DSLR from a computer USB port or from smartphone and tablet wall chargers then it should work fine.

To get definitive confirmation our customer service guys at support@ianker.com will be more than happy to help you out!
Reply Report as spam Dec 9, 2014 at 9:30 PM
Power n charge MBP 13" while working?
Power and charge a Macbook Pro 13" 60W while in use? Are these still availabe or discontinued?The MBP 13" non-retina 60W adapter is rated for 16.5V at 3.65A, do you have reports of any problems of these batteries driving and charging these laptops? My second question is what is the output power connector size on the unit itself? You only show adapters. Thanks,Robert
Replies(2) Collapse Report as spam Nov 27, 2014 at 5:28 AM
gherardini
No. It is very bad for the battery to chage a device while being charged itself. In later models, Anker has disabled that functionality because it just kills the life of the battery. You can find them, many times on various Ebay sites [worldwide] rather than retail/Amazon, but they are still available.
Reply Report as spam Nov 27, 2014 at 8:20 AM
ANKER Team
The 1st Gen Pro2 can output 16V/3.5A. This is a little underpowered so it may work but we can't vouch for the performance.

The size of the barrel plug on the DC cable is 5.5*2.5mm.
Reply Report as spam Nov 27, 2014 at 10:00 PM
Will this work with a Lenovo Y50-Y70?
Just want to know so I can buy this.
Replies(1) Collapse Report as spam Nov 25, 2014 at 10:25 PM
ANKER Team
What is it you need to know?

The Astro is available right now!
Reply Report as spam Nov 26, 2014 at 1:30 AM
charging questions?
1. Will it able to charge my Acer laptop computer 5920, battery AS07B31, which my lap top battery has stated that it's 11.1V, 4400 mah? Which buttons to switch for voltage to use, can you explain it more clearly? I'm not sure which voltage is for what device.2. If it can charge my Acer laptop, will it be able and can handle while it is charging my laptop, and as the same time simultaneously to charge my smart phone Samung S3 all together?3. Will to DC output able to charge some other household items, for example: hand held radio, stereo headphones, bluetooth earphone, etc?? Sorry, I am still confused by which voltage button is for which kind of device.4.P.S. I am living in N.America, so we have the same voltage.Thank you
Replies(1) Collapse Report as spam Nov 23, 2014 at 3:24 AM
ANKER Team
We previously got all these answered under your question for the 2nd Gen Pro2.

Our answers will be the same but remember the max output of the 1st Gen is 19V/3A and it comes with plenty of adapters. You can confirm exactly which adapters by checking the listing on Amazon.
Reply Report as spam Nov 23, 2014 at 9:00 PM
Toshiba Laptop Compatibility
Hello, can I use this with a Toshiba Qosmio F60 (PQF65A - 00Y002) DC 19V - 4.74A?If not, do you have an external battery that is compatible?Thank you!  
Replies(2) Collapse Report as spam Nov 20, 2014 at 11:46 PM
ANKER Team
The input of your Toshiba is 19V/4.74A and this is higher than the 1st Gen Pro2's 19V/3A. This means that it won't quite be powerful enough.

Unfortunately the 1st Gen Pro2 is also our most powerful battery so we don't have a solution for you on this occasion.
Reply Report as spam Nov 21, 2014 at 2:30 AM
AnkerMember431
Perhaps there could be one that may work in the future..?
Reply Report as spam Nov 22, 2014 at 7:24 PM
will it charge my laptop
hello i have a laptop with a charger that has an out put of 19v =4.47a 90w can i use this chargerthank you
Replies(1) Collapse Report as spam Nov 10, 2014 at 5:37 PM
ANKER Team
The max output of the 1st Gen Pro2 is 19V/3A so unfortunately they won't work together.
Reply Report as spam Nov 11, 2014 at 3:49 AM
Laptop Compatibility
Hello, I have a laptop " Asus X200MA CT399H 11,6" model with a tip size of 4mm, the reference i have on power adaptor with such information  AD890026 type 010LF, so I would like to know which external battery will support it , a tleast a 20000mAh. Thanks Regards Eric
Replies(1) Collapse Report as spam Nov 10, 2014 at 8:51 AM
ANKER Team
This charger has a max output of 19V/3A so unfortunately it won't be powerful enough to charge your laptop properly.
Reply Report as spam Nov 11, 2014 at 3:49 AM
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