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Anker Astro Pro2 20000mAh Multi-Voltage External Battery

Anker Astro Pro2 20000mAh Multi-Voltage External Battery

60W wall charger - product

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

Liyun Yu
  • Nice product to keep macbook pro running
  • A great product works nicely with plenty of battery time recharging the macbook pro laptop and also for ipad also for the phone. The product packaged nicely as well. A very convenient choice for frequent travelers or remote workers.
  • 2015-08-26

vindex
  • Five Stars
  • Fantastic. It Works perfectly and looks beautiful. Thank you.
  • 2015-08-24

Galen C. Dalrymple
  • Put this "nuclear reactor" in your computer bag!!!!
  • Wow! This is like carrying a nuclear reactor in my computer bag!! LOADED with power, I am using it to charge both my Surface Pro 3 and my cell phone...and I can charge both at the same time! Power just FLOWS out of this thing. I'm extremely pleased with this purchase.Let me say this: if you have a Surface Pro 3, buy this one and not the second Gen Anker Pro 2. I bought that first, hoping to charge my Surface Pro 3 with that, but I couldn't find a cable that would connect with the DC Out on the 2nd Gen Anker Pro 2. I did find one that works with the Surface Pro 3. Both are great and full of power, but even though I found adapters to make the 2nd Gen Anker Pro 2 connect to the Surface Pro 3, but it doesn't output power at as many mAh and it doesn't seem to output enough to trip the charging mechanism in the Surface Pro 3.So, if you are like me and were looking for something to charge the Surface Pro 3, buy the Anker Astro Pro2 20000mAh Multi-Voltage charger. You won't regret it!
  • 2015-08-21

William Peters
  • Five Stars
  • Excellent!
  • 2015-08-20

phototgguy "photogguy"
  • 2 thumbs up
  • 2 thumbs up
  • 2015-08-17
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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 external batteries with a capacity lower than 27027mAh (100 Watt Hours) can legally and safely be taken on board airplanes. To calculate a battery's capacity in Watt Hours: (Battery Capacity(mAh)*3.7)/1000.

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.
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

Solar Charger

What is the recommended solar charger for this device?

Does it plug directly or do I need adaptors?

 

Replies(2) Collapse Report as spam Aug 18, 2015 at 6:34 PM
Gabrielkbkim

no you might want to use wall charger

if solar power is avliable to support up to 20V

Reply Report as spam Aug 19, 2015 at 8:53 PM
ANKER Team
It is most likely that any solar charger would not be powerful enough to charge this battery.
Reply Report as spam Aug 20, 2015 at 11:00 PM
Need info on Output jack

Just received the Astro Pro 2 20000mAH battery.  Love the fact that I can connect and charge multiple items.  However I am a ham radio operator and tried to mate one of your plugs to my handheld transceiver (Kenwood TH-F6A) but nothing would fit.  Do you make a cable that would connect the Output jack of the battery to a cigarette lighter jack? 

This way I can get a cable from Kenwood to go from the radio to a cigarette lighter.  If not can you tell me what the inner dimension and outer dimension of the Output jack is?

Thank you,

Ken Nowinski

Replies(2) Collapse Report as spam Aug 15, 2015 at 10:27 AM
ANKER Team
We don't have this kind of cable, but here are the dimensions:
The DC port on the unit is 4.3*1.65 mm
DC Cable Female end: 5.5*2.1 mm.
Reply Report as spam Aug 17, 2015 at 3:00 AM
Gabrielkbkim


The DC port on the unit is 4.3*1.65 mm
DC Cable Female end: 5.5*2.1 mm.

Reply Report as spam Aug 19, 2015 at 8:52 PM
James Knol

Does this external Battery com with the connection to supply power to a Acer Aspire Switch 11? Can any other of your models do this job?

Replies(2) Collapse Report as spam Aug 6, 2015 at 4:47 PM
ANKER Team
Thanks for taking an interest in our battery! Please contact Acer first to get information on the tip size that you need. You can find all the tip sizes that come with this battery on top.

Unfortunately, none of our other models are able to charge your Acer.
Reply Report as spam Aug 11, 2015 at 10:00 PM
Gabrielkbkim

this can but to be make sure contact support@ianker.com 

Reply Report as spam Aug 7, 2015 at 10:33 PM
Compatibility with HP ENVY 15-j011dx

Hi! 

I was wondering if this item is compatible with the HP ENVY 15-j011dx -- and if so, which connector tip would work for the laptop. 

Thanks very much.

Replies(2) Collapse Report as spam Jul 28, 2015 at 6:03 PM
ANKER Team
Yes, it is compatible. Please contact HP for more information on the tip size of the cable. Unfortunately, we can not provide this kind of information.
Reply Report as spam Aug 6, 2015 at 3:30 AM
Gabrielkbkim

please contact support@ianker.com for the inquiry

Reply Report as spam Jul 29, 2015 at 6:52 AM
DC out port size
What is the size of the DC out connector on this battery?
Replies(2) Collapse Report as spam Jul 26, 2015 at 8:52 PM
ANKER Team
The DC out connector's tip size is 5.5 x 2.1mm if you use the provided cable. If you'd like to connect your own cable to the output port directly then you will need a 5.5 x 2.5mm connector.
Reply Report as spam Aug 4, 2015 at 12:00 AM
Gabrielkbkim

READ THE ABOVE DISCRIPTION WHICH SAYS

Output USB output: 5V, 2A; DC output: 12V / 4A, 16V / 3.5A or 19V / 3A

Input 15-19V / 1.3A

 

Reply Report as spam Jul 29, 2015 at 6:51 AM
Led turn on

I am using Anker Astro Pro2 (79AN20L).

I realise the led is lit if i leave the cable attached no doubt the cable is not connected to any device for charging.

Is the battery draining power when leave in this configuration ?

Is there any way I can leave the cable attached without turning on the led and charging capability?

Its very troublesome if i have to always remove the cable to off the battery pack.

It would be best if it function like normal external battery when the charging and led will only kick in only when a device is connected for charging.

Please advise.

Replies(2) Collapse Report as spam Jul 22, 2015 at 7:55 AM
ANKER Team
Thanks for contacting us! Please try whether this problem also comes up if you are using another cable. If your are still experiencing problems please contact our friendly service team at support@ianker.com and they will help you out.
Reply Report as spam Jul 26, 2015 at 9:00 PM
Gabrielkbkim

contact support@ianker.com 

Reply Report as spam Jul 29, 2015 at 6:50 AM
Anker Batterties w/ DC output:

Few questions: 

1. is there a way to stop the DC output battery from going to 'sleep' when plugged into a source that needs constant power.  We have the DC output going to a set of LED's however when you turn off the LED's the battery stops sending power even when LED's are turned on again.

2.  Is there another batthery that you sell which has DC output from 14v-19v? 

Thanks, Brandon 

 

Replies(2) Collapse Report as spam Jul 1, 2015 at 11:08 AM
ANKER Team
Thanks for taking an interest in this battery! Here are the answers for your questions:

1. The device connected to the DC output needs to draw at least 80mA to keep it working. It is possible that the LEDs draw less energy and will therefore cause the Astro Pro to turn off.

2. Unfortunately, we only sell this one model with an output higher than 12V.
Reply Report as spam Jul 2, 2015 at 3:30 AM
Gabrielkbkim

Anker should make another big power bank with 20V output 

Reply Report as spam Jul 2, 2015 at 7:37 AM
I lost my connector tip sizes

Hi, I have the anke pro2 2000mah, however, I don't have the connector tip sizes. Could you please tell me where I can get the replacements?

 

Thank you for your help in advance

 

Regards

Replies(3) Collapse Report as spam Jun 26, 2015 at 9:57 AM
MikeC

try support@anker.com they'll help you out.

Reply Report as spam Jun 26, 2015 at 1:11 PM
Gabrielkbkim

Contact support@ianekr.com they will send you replacement with fee 

Reply Report as spam Jun 26, 2015 at 9:46 PM
ANKER Team
Sorry to hear that you lost some of the connectors. Please let our friendly support know and they will help you get a replacement: support@ianker.com
Reply Report as spam Jun 29, 2015 at 4:30 AM
What is the warranty for the device?

I wonder what would be the warranty for this battery? And I need to know how many cycles charge\discharge this battery is rated at? I thank you in advance!

Replies(3) Collapse Report as spam Jun 18, 2015 at 3:03 PM
galaxytechreview

I beleive it is 18 months, like most of Anker's products. Most lion batts have at least a 500 charge/discharge cycle.

Reply Report as spam Jul 19, 2015 at 8:31 PM
Gabrielkbkim

http://www.ianker.com/Warranty.html

and it will last really long because it uses Li-ion battery 

Reply Report as spam Jun 18, 2015 at 7:07 PM
ANKER Team
The warranty period is 18 months for external batteries. In general, the lifetime of battery cells is 300-500 cycles.
Reply Report as spam Jun 18, 2015 at 9:30 PM
Carrying Case

Hi, where can I buy a case like the one shown on this page? Thank you for your time and consideration. V/R, Roger

Replies(5) Collapse Report as spam Jun 17, 2015 at 7:34 PM
rmscholbe

I did and I will call tomorrow. Thank you for the prompt response!

Reply Report as spam Jun 17, 2015 at 10:04 PM
Gabrielkbkim

did you purchase one of this device? 

If yes contact 1-800-988-7973 (US) Mon-Fri 9am-5pm (PST) support@ianker.com

Reply Report as spam Jun 17, 2015 at 8:13 PM
rmscholbe

Is anyone working today? I have been listening to music for 35 minutes after dialing the number you posted and pressing 2.

Reply Report as spam Jun 18, 2015 at 11:35 AM
Gabrielkbkim

Quote From rmscholbe: they should be i think they are busy or having meeting

Reply Report as spam Jun 18, 2015 at 6:35 PM
ANKER Team
We are very sorry for the long waiting time and will have a look at what happened internally. Regarding your question about the bag, unfortunately we are not able to offer it as we bought it overseas.
Reply Report as spam Jun 18, 2015 at 9:30 PM
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