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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 4.5A shared between the ports with the USB ports able to deliver the full 4.5A.
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 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 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

Recharge Cycles

Can you please tell me how many Recharge Cycles the Anker 2nd Gen Astro Pro2 20000mAh Quad-Port External Battery is rated at?

Replies(2) Collapse Report as spam Jul 1, 2015 at 9:35 PM
Gabrielkbkim

about 400-500 cycles but will last about 5 years or so on 

Reply Report as spam Jul 2, 2015 at 7:19 AM
ANKER Team
Thanks for taking an interest in our external battery! It's rated for at least 500 cycles.
Reply Report as spam Jul 3, 2015 at 2:00 AM
Charge Astro Pro2 20000mAh with solar

I am trying to charge the Anker 2nd Gen Astro Pro2 20000mAh, using a solar charge controller and solar panels, I need to know however what the maximum charge voltage (constant voltage mode), of the Astro Pro2 is, so I could choose the right controller and panels.  Thank you.

Replies(2) Collapse Report as spam Jun 30, 2015 at 9:20 PM
ANKER Team
The input the Astro Pro 2 will need to charge is 12V. If further questions come up, our friendly service team will be happy to help: support@ianker.com
Reply Report as spam Jul 2, 2015 at 3:00 AM
Gabrielkbkim

it will not charge with Solar panel from anker but if the other solar panel outputs 12V then yes it will charge 

Reply Report as spam Jul 2, 2015 at 7:18 AM
USB maximum current per port?

Can you tell me what the maxium current draw is per port. 

Replies(3) Collapse Report as spam Jun 29, 2015 at 7:02 PM
ANKER Team
The maximum output per port is:
USB output: 2.4A
DC output: 9V / 2A or 12V / 1.5A
Reply Report as spam Jul 1, 2015 at 3:30 AM
Gabrielkbkim
USB output: 5V 2.4A each 
DC output: 9V / 2A or 12V / 1.5A
 

 

 

Reply Report as spam Jul 2, 2015 at 7:17 AM
gherardini

USB ports would be 2.4v

Reply Report as spam Jun 30, 2015 at 9:00 AM
DC and USB mode at the same time?

Can this product charge both a 9V device through the DC output, and a 5V USB device simultaneously? Or can it only do one mode at a time?

Replies(2) Collapse Report as spam Jun 29, 2015 at 5:41 PM
ANKER Team
Yes, it can charge via USB and DC output at the same time!
Reply Report as spam Jul 1, 2015 at 3:30 AM
Gabrielkbkim

yes at the same time 

 

Reply Report as spam Jul 2, 2015 at 7:16 AM
Does this work with my laptop

Hello, Im trying to fimd a good reiable external battery pack for both my nexus 6 and my yoga 13 (first gen) laptop. I was wondering if this would work with both? my laptop charger says thst its input is 1.5 amps but it says the volt is 100-240V. Can anyone let me know if this will work, and of it won't can someone point me in the right direction?

 

thanks,

mike

Replies(3) Collapse Report as spam Jun 28, 2015 at 9:31 PM
Gabrielkbkim

no it does not your computer needs 13V 1-2amp but this goes only up to 12V Try the 

Anker Astro Pro2 20000mAh Multi-Voltage External Battery

 

Anker Astro Pro2 20000mAh Multi-Voltage External Battery

Reply Report as spam Jul 2, 2015 at 7:15 AM
Nichow

I'll start by admitting I'm not real familiar with your laptop.  I personally haven't seen a laptop via USB, but that doesn't mean yours doesn't.  I think what you are looking for is more along the lines of the jump starter unit.  That charger has a high output designed for laptops.

Reply Report as spam Jun 29, 2015 at 3:45 AM
ANKER Team
From what our research found, your laptop is using a 13V input. As this battery is only providing 12V, we do not recommend using it. Unfortunately, we do not offer a more suitable model.
Reply Report as spam Jun 29, 2015 at 4:30 AM
5V USB usage

I would like to use this battery for a cctv video camera that operates on maximum 5V/2A. Is it required that the USB ports recognize a device before they will output their max current rating? Would the USB ports allow my camera to draw the adequate current?

Replies(3) Collapse Report as spam Jun 28, 2015 at 7:51 PM
Gabrielkbkim

in US it is not called CCTV it's called survaliance camera and each port is capped 1.5A

Reply Report as spam Jul 2, 2015 at 7:13 AM
ANKER Team
Yes, the devices need to be recognized before the battery will start charging. If your camera does not draw more than 50mA from the battery, it will not get recognized.

The USB ports adjust their output to what your device needs.
Reply Report as spam Jun 29, 2015 at 4:30 AM
Wayne Therrien

One addational question regarding the USB ports,....   What is the maximum drawing per port? The spec states 4.5A for the 5V usb ports. Are the three ports capped at 1.5A per port, or can any one port draw up to 4.5 amps?

Thanks again

Wayne

Reply Report as spam Jun 29, 2015 at 6:19 PM
Charge Anker with solar panel?

Is it possible to charge the Anker 2nd Gen Astro Pro2 20000mAh with a solar panel e.g. the Anker® 14W ? If so how long would it take on average to charge is during a sunny day?

Replies(2) Collapse Report as spam Jun 28, 2015 at 4:32 PM
MikeC

sun up til sundown

Reply Report as spam Jun 28, 2015 at 5:39 PM
Gabrielkbkim

Will not charge Pro 2 because it requires 12V 

Do not double post 

Reply Report as spam Jul 2, 2015 at 7:11 AM
Charge Anker with solar panel?

Is it possible to charge the Anker 2nd Gen Astro Pro2 20000mAh with a solar panel e.g. the Anker® 14W ? If so how long would it take on average to charge is during a sunny day?

Replies(3) Collapse Report as spam Jun 28, 2015 at 4:20 PM
Gabrielkbkim

dont double post but required input is 12V for the Astro Pro 2 

Reply Report as spam Jul 2, 2015 at 7:10 AM
MikeC

please don't double post.

Reply Report as spam Jun 28, 2015 at 5:37 PM
ANKER Team
Sorry, due to the required input of 12V the Astro Pro 2 does not charge with our solar panels.
Reply Report as spam Jun 29, 2015 at 4:00 AM
Love the capacity

Love this charger, it charges fast and i use it to charge my car through an inverter, lasts long 

Replies(2) Collapse Report as spam Jun 26, 2015 at 10:48 PM
Gabrielkbkim

hey thanks for leting us know but comon do not post samething in different product 

 

Reply Report as spam Jun 27, 2015 at 9:23 AM
ANKER Team
Happy to hear that you like our product!
Reply Report as spam Jun 29, 2015 at 4:30 AM
Replacement Charger

So I broke the earth off the plug on the wall charger.  Oh the joys!!!

Where can i get a replacement?  I really just need the gb clip.

Replies(2) Collapse Report as spam Jun 23, 2015 at 10:01 AM
Gabrielkbkim

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

They might be charging you for item and shipping 

But go ahead and ask them 

Reply Report as spam Jun 24, 2015 at 8:32 AM
ANKER Team
So sorry to hear about this incident. Please contact our friendly service team at support@ianker.com and they will help you out.
Reply Report as spam Jun 24, 2015 at 8:30 PM
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