Your Position: Home > Power > Portable Chargers > External Batteries > 2nd Gen Astro >

Anker 2nd Gen Astro3 12800mAh External Battery

Anker 2nd Gen Astro3 12800mAh External Battery

60W wall charger - product

Product Description

The all-new 2nd generation Anker® Astro3 recasts the possibilities of mobile power.

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.

Packed with power.

We figure, the more power, the better. Packed with 12000mAh of juice, and featuring an energy efficiency rate 10% above previous generation Astros and many current standard alternatives, the new Astro3 charges the iPhone six times and large-capacity phones like the Galaxy S4 almost four times.

Double take.

Chic and minimalistic, the new Astro3 may feel reserved at first. But, a friendly "shake" reveals its warm inner light to display the power level or begin your charge. Generous, cool, and delightfully intuitive, the new Astro3 is perfect for your next adventure, or just the daily grind.

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 Reviews

S. Atyeo "ShellyLA"
  • Buy one, you'll like it.
  • This is AWESOME. Never thought about buying one, but a relative stayed over and had one and I like the idea, so I purchased one. I love it, it has a quick charge, it holds a charge well when not in use. I had no idea how much I would use this. Super happy.
  • 2015-07-30

Hugh Chung
  • I like that there is a better indication of battery level ...
  • I like that there is a better indication of battery level than the usual good/medium/low indicator on most external batteries. Also 4 amp charging means devices charge at maximum possible. The build quality is good. Overall a great product.
  • 2015-07-26

Terence Manuel
  • Awesome!!
  • Awesome battery pack! Can charge up to 4A!!! My LG 4 and LG G Pad 7 were each down to 12-15% battery level. Plugged both into this charger and in one hour each was over 60%! Wow!!! Feels great and looks great...I bought two of these babies!
  • 2015-07-24

Deimler Gonzalez
  • Good, only complaint
  • Good, only complaint... Very slow charging if you dont have a 2A circuit jajajaj..oh, it gets dirty pretty easy.
  • 2015-07-05

Jill E. Habrich
  • Anker is awesome
  • Love this device! My IPad and iPhone will never be low battery again!
  • 2015-06-27
<< < 1 2 3 4 5 6 7 8 9 10 > >>

Customer FAQ

Q1.  Can I use a different USB cable rather than the cable that comes with the 2nd Gen Astro3 12000mAh 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.  What kind of wall charger should I use to charge the 2nd Gen Astro3 12000mAh external battery?
The battery can be recharged from any PC or laptop USB port or any USB AC adapter. A USB AC adapter with 2A or more output current will maximize charging speed. Lower currents will prolong charge time.
Q3.  What devices are compatible with the 2nd Gen Astro3 12000mAh external battery?
The battery is compatible with Android, Apple and almost all other devices charged via USB. It has a maximum output of 4.0A shared between the ports with each port able to deliver the full 4.0A.
Q4.  How long will the 2nd Gen Astro 3 12000mAh external battery take to be fully charged?
It takes alomost 9-10 hours to fully charge the battery with a 5V/2A wall charger.
Q5.  Does the 2nd Gen Astro3 12000mAh 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 cable be compatible with 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.  What's the output efficiency of the 2nd Gen Astro3 12000mAh 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.
Q8.  Can the 2nd Gen Astro3 12000mAh external battery charge other devices while it is being charged?
No.
Q9.  My device charges at 1 Amp, will the 2nd Gen Astro3 12000mAh external battery’s 4 Amp output harm it?
No, the external battery will only supply the maximum charge current allowed by your device.
Q10.  Can the 2nd Gen Astro3 12000mAh external battery charge multiple devices simultaneously?
Yes, it can charge three devices simultaneously. But please note that when using 3 output ports simultaneously, the total output current will not exceed 4A.
Q11.  What do the LEDs indicate when the 2nd Gen Astro3 12000mAh external battery is charging itself or other devices?
When the battery is charging your devices, the smart LED indicator will respire; displaying its remaining power. It will shut off automatically once your device has completed charging or ceases to draw a current.
When the battery is being charged, the smart LED indicator will light up. The constantly lit portion of the LED circle shows the current level of charge while the cascading LEDs display the portion still charging. The LED display will shut off once battery is fully charged.
Q12.  Will the the 2nd Gen Astro3 12000mAh external battery lose power when it turns on unexpectedly in a back pack or pocket?
Although it may activate occasionally when in your bag or pocket , the power usage of the LED indicator is negligible. It would take over 100,000 activations to drain even 1% of the battery's capacity.
Q13.  How long will the charge in a 2nd Gen Astro3 12000mAh external battery last without being used?
Generally, the 2nd Gen Astro3 12000mAh external battery's static power consumption is lower than 100uA, which will take between 3.5 and 20 years to drain 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.
Q14.  Can the 2nd Gen Astro3 12000mAh external battery be used for international travel?
Yes. Please be sure that the USB AC adapter is compatible with the voltage of the country you're travelling to. The input voltage of an adapter is usually labeled on the adapter.
Q15.  Can the 2nd Gen Astro3 12000mAh external battery be taken on board airplanes?
Yes, all Anker external batteries including the 2nd Gen Astro3 12000mAh 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.
Q16.  What should I do if the 2nd Gen Astro3 12000mAh external battery can not be charged?
Please try a different AC adapter and Micro USB cable to see if that helps. Email us at support@ianker.com during your 18-month warranty period if this doesn't fix the issue.
Q17.  What should I do if the 2nd Gen Astro3 12000mAh 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.

You may also like

Feel free to ask questions about this product here.
Your question will be posted on this page.
Anker Customer Support and the Anker user community will do their best to quickly answer your question.

Title:*

Comment:*

Please enter the verification code - humans only!*

  

Latest Post

registration

how do i regester my purchuse of external battery

Replies(3) Collapse Report as spam May 31, 2015 at 2:06 PM
Gabrielkbkim

Your Order # or need Valid proof when you need support 

Reply Report as spam May 31, 2015 at 10:53 PM
Davidson Blanchard

That is a great question - there is no need to register your Anker product. Anker products are sold with an 18 month warranty (if purchased from Anker - not shady sellers). Just keep your invoice (order email) as proof of purchase and you are good to go! 

-Information about the 18 month warranty is found in the product manual.

Reply Report as spam May 31, 2015 at 4:36 PM
TechToyWizard

You only require valid proof of purchase from an authorized Anker sales source to make a warranty claim. Before submitting a warranty claim, please refer to the specific FAQs for your product and attempt all troubleshooting suggestions. If you believe the item is defective and under warranty, please submit a Return or Exchange request on the product’s support page, or contact us at support@ianker.com.

Reply Report as spam May 31, 2015 at 8:11 PM
Simply amazing and reliable!

I have charged my iphone 5s up to 6.5 times on one full Anker 2nd Gen Astro3 charge. I usually turn my phone on "Airplane mode" so it will charge faster and won't drain my battery while I'm charging. For some cases that I need to use the phone while charging, I'd approximate about 4.5-5 charges.

On another note, I often use my Anker 2nd Gen Astro3 to power my RasberryPi device, which is nice because it adjusts the extra .5v (give or take) when the Pi fluctuates due to processing. I consider it more reliable than a wall charger.

Replies(4) Collapse Report as spam Apr 10, 2015 at 6:42 PM
Gabrielkbkim

Thanks for the review 

I use beagle bone black and it works well

Reply Report as spam Apr 10, 2015 at 7:03 PM
TechToyWizard

How much faster does airplane mode give you? Mine doesn't charge any faster, only depletes slower.

Reply Report as spam Apr 10, 2015 at 7:28 PM
Lasika

Quote From TechToyWizard:yes same here

Reply Report as spam Apr 10, 2015 at 8:41 PM
Jamison Toy

I would say it roughly charges 10-15% faster. It all depends on your signal to your provider and also what apps you're using.

Reply Report as spam Apr 27, 2015 at 10:57 PM
jordan

is this powerbank compatible with the 14 w anker solar charger. will the solar charger charge this device basically what i need to know thank you ?

Replies(4) Collapse Report as spam Apr 1, 2015 at 1:31 PM
Gabrielkbkim

If you want to charge battery pack with solar then yes 

use the usb cable and connect it to solar panel power IQ port

Reply Report as spam Apr 1, 2015 at 4:34 PM
gherardini

Yes, it is, it will work fine with the solar power pack

Reply Report as spam Apr 1, 2015 at 4:36 PM
TechToyWizard

Anker's solar panel will charge all of their external packs. Perhaps slowly depending on ambient light. And always use caution not to leave the battery in direct sunlight while charging. The solar panel needs sunlight, batteries hate it.

Reply Report as spam Apr 2, 2015 at 3:01 AM
ANKER Team
The powerbank is compatible with our solar chargers, but will take long to charge fully due to its big size.
Reply Report as spam Apr 6, 2015 at 1:00 AM

Roi

full charge

How many full charge do you get for iphone 5s? including the 20% efficiency loss for the powerbank.  Thanks!

Replies(5) Collapse Report as spam Mar 5, 2015 at 10:56 AM
Jamison Toy

I have charged my iphone 5s up to 6.5 times on one full charge. I usually turn my phone on "Airplane mode" so it will charge faster and won't drain my battery while I'm charging. For some cases that I need to use the phone while charging, I'd approximate about 4.5-5 charges. Hope this helps!

Reply Report as spam Apr 10, 2015 at 6:33 PM
ANKER Team
It should provide around 5.7 charges to the iPhone 5S!
Reply Report as spam Mar 5, 2015 at 11:00 PM
gherardini

efficiency loss is between 20% - 30%, environmental variables make it an imperfect equation. As does the amount of discharge of your phone's battery before you connect it to the charger. But after subtracting the efficiency loss overhead, what's left is avaiable to your battery, just do some simple division based on the rated mAh of your phone's battery. What do you come up with? Bet it will be about 3+ times. Give or take...

Reply Report as spam Mar 5, 2015 at 11:52 AM
TechToyWizard

"How many charges" depends on how far the battery is drained when you begin charging, the age and condition of the battery, and the ambient temperature, among other factors. It would be impossible to assign as exact number of full charges you will get for the 5s or for any other device.

Reply Report as spam Mar 5, 2015 at 12:02 PM
Roi

so is it normal that i get 4.5 full charge for my iphone5s? starting from 10% battery life

Reply Report as spam Mar 6, 2015 at 8:28 PM
John

What are the dimensions and weight of the shipping package of the Anker 2nd Gen Astro3 12000mAh?

Replies(1) Collapse Report as spam Mar 4, 2015 at 9:08 PM
ANKER Team
The shipping weight is 13.6 ounces.

Since Amazon are responsible for shipping and delivery we can't confirm exactly how they will package it though so the size is difficult to confirm. The standard battery packaging is 170mm * 105mm * 37mm.
Reply Report as spam Mar 5, 2015 at 12:30 AM
which one outputs more?

Between the 2nd Gen Astro3 13000mAh and the 2nd Gen Astro E4 12000mAh, which one can give out more charge to the phone? 

I noticed that in the product description, it said the Astro E4 can give "ALMOST 6 charges to iPhone 5s" and the Astro3 "charges the iPhone six times".

So my understanding is the Astro3 can output more than the Astro E4, is that correct?

Replies(6) Collapse Report as spam Feb 1, 2015 at 3:34 AM
gherardini

the mAh [milli Amp hours] rating is how much charge the battery contains. Multiply this by .70 [i think that is what the Anker says the electronic loss is due to resistance, heat, etc.] and that is how much th Anker battery will fill the mAh of your phone's battery. Different models have different designs, but the mAh rating is what you are looking at for charging power.

Reply Report as spam Feb 1, 2015 at 10:02 AM
Fillipa

Quote From gherardini:

So basically the two have same eletrotric converting rate?

Reply Report as spam Feb 1, 2015 at 12:05 PM
Lasika

by the  way AStro 3 is 12,800 and E4 is 13,000

Reply Report as spam Feb 1, 2015 at 1:09 PM
alexhelm

It really depends on when you start charging your phone and how far you allow it to charge...you can go beyond expectations if you keep the battery between 50-80% since it strains the external battery to fully charge the phone to 10% as it takes more energy to shove electrons into your phone

It's like... you can eat til you are 80% full or you can go 100%, but it takes more work to eat the last 20%

Reply Report as spam Feb 1, 2015 at 4:24 PM
bunker62

Fillipa, the description above states the Astro E3 12000mAh. I own two Astro E4's with IQ technology and I prefer the size of the E4. You can't go wrong with either purchase because Anker makes quality products. I have older versions of the Astro's and they still work.

Reply Report as spam Feb 1, 2015 at 9:32 AM
ANKER Team
The latest 2nd Gen Astro3 has 12,800mAh and the 2nd Gen E4 is 13,000mAh so they'll charge around the same.

The 2nd Gen Astros can offer a very slight efficiency advantage.
Reply Report as spam Feb 2, 2015 at 12:30 AM
Black Friday Cyber Monday Discount

how much percentage discount did this have during black friday cyber monday ?

Replies(5) Collapse Report as spam Jan 25, 2015 at 9:28 AM
gherardini

I think it was close to 30%

Reply Report as spam Jan 25, 2015 at 12:40 PM
Lasika

When is Black Friday ?

Reply Report as spam Jan 25, 2015 at 8:17 PM
gherardini

1.] black friday = day after thanksgiving here in u.s. 2.] cyber monday = the monday after thanksgiving, when everyone goes back to work after the thanksgiving 4-day weekend and just shops online all day instead of working.

Reply Report as spam Jan 25, 2015 at 11:04 PM
ANKER Team
The Astro3 was not on sale during the Black Friday and Cyber Monday deals.
Reply Report as spam Jan 26, 2015 at 4:30 AM
TechToyWizard

Black Friday was a one day deal for certain products. That was 2 months ago and Anker has answered your question.

Reply Report as spam Jan 26, 2015 at 12:04 PM
Two questions
 hi.I really enjoyed your product: anker 2nd gen astro 12000 Mah but I have two questions : 1- my astro got dirty from the travelling cloth it comes with. So how can I clean it? 2- I usually charge my anker at night before I sleep and I'm afraid that it's getting over charged, so does it cut the power itself after its fully charged? Thank you
Replies(5) Collapse Report as spam Nov 10, 2014 at 3:03 AM
Will Kraft
"I usually charge my anker at night before I sleep and I'm afraid that it's getting over charged, so does it cut the power itself after its fully charged? Thank you"You never have worry about over charging with Lithium Ion batteries, they basically stop charging once they are full.     
Reply Report as spam Nov 10, 2014 at 10:27 AM
ANKER Team
What kind of dirt have you got on it?

You could wipe the outside with a damp cloth as long as you were sure that no water or dampness could get into the ports.

Don't worry about overcharging, the Astro will stop accepting a charge when it reaches capacity.
Reply Report as spam Nov 11, 2014 at 3:49 AM
ANKER Team
What kind of dirt have you got on it?

You could wipe the outside with a damp cloth as long as you were sure that no water or dampness could get into the ports.

Don't worry about overcharging, the Astro will stop accepting a charge when it reaches capacity.
Reply Report as spam Nov 11, 2014 at 3:49 AM
Yousif Alsharqi
Quote From ANKER Team:The dirt is unremoveable I don't know why I tried every thing. The color is grey shades 
Reply Report as spam Nov 11, 2014 at 9:31 AM
Lasika

Try to use black one than the white one may be help

Reply Report as spam Jan 25, 2015 at 8:18 PM
A couple of questions...
1. Which was released later: the 2nd Gen Astro3 12000mAh OR the 2nd Gen Astro E4 13000mAh?2. Is this (http://www.ebay.com.au/usr/ankerdirect) your official ebay store?3.Are your products available in Sri Lanka; maybe via an authorised seller?PS. sorry about barrage of questions, but I really want to get hold of one your batteries; hopefully :)
Replies(1) Collapse Report as spam Oct 11, 2014 at 2:53 AM
ANKER Team


Thanks for all the questions!

1. The 2nd Gen E4
2. Yes!
3. No, we don't have a reseller in Sri Lanka but our eBay store will ship there!
Reply Report as spam Oct 13, 2014 at 12:00 AM
galaxy note pro 12.2 compatibility
Is the astro compatible with the galaxy note pro 12.2? 
Replies(2) Collapse Report as spam Sep 12, 2014 at 6:07 AM
Andrew mc
Yes the astro is compatable for the note pro 12.2 it will work perfectly fine for it
Reply Report as spam Sep 12, 2014 at 5:33 PM
ANKER Team


Yes, it'll work with the Note Pro.
Reply Report as spam Sep 14, 2014 at 8:30 PM
<< < 1 2 3 4 5 6 7 8 > >>