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Anker® 2nd Gen Astro3 12000mAh Portable Charger Backup External Battery World’s-Fastest (4A Output) Triple-Port Shake-to-Wake Highest-Energy-efficiency Power Pack for iPhone 5S, 5C, 5, 4S, iPad Air, iPads, Samsung Galaxy Tablets, other Android Smart Phones and Tablets (Apple adapters and Samsung 30-pin adapter not included)

Anker® 2nd Gen Astro3 12000mAh Portable Charger Backup External Battery World’s-Fastest (4A Output) Triple-Port Shake-to-Wake Highest-Energy-efficiency Power Pack for iPhone 5S, 5C, 5, 4S, iPad Air, iPads, Samsung Galaxy Tablets, other Android Smart Phones and Tablets (Apple adapters and Samsung 30-pin adapter not included)

Anker® 2nd Gen Astro3 12000mAh Portable Charger Backup External Battery World's-Fastest (4A Output) Triple-Port Shake-to-Wake Highest-Energy-efficiency Power Pack for iPhone 5S, 5C, 5, 4S, iPad Air, iPads, Samsung Galaxy Tablets, other Android Smart Phones and Tablets (Apple adapters and Samsung 30-pin adapter not included)

  • Charges the iPhone 6 times and large-capacity phones like the Galaxy S4 almost 4 times with the industry’s highest combined charge output of 4A among three charging ports. One Smart Port (5V / 2.4A max) offers truly maximum speed charges to ANY device, including the iPad or even the Samsung Galaxy Tab. 2 additional ports charge Android smartphones at full speed.
  • High energy efficiency rate, 10% above previous generation Astros and many current standard alternatives, gives you up to an extra full charge for your smartphone. Sturdy construction and matte finish withstands bumps and drops. Grade A cells and premium chips ensure reliability.
  • A “shake” starts a charge or displays the remaining power level. The ultra-low power consumption (100, 000 shakes consumes less than 1%) Smart LED display, designed with 10 LEDs, balances accuracy and aesthetics.
  • Input: 5V / 1.5A; Use a 1.5A adapter (not included) with the included USB cable for fastest charging time (9 hours).
  • Package contents: Anker® 2nd Generation Astro3 External Battery, Micro USB cable, travel pouch, instruction manual.

The all-new 2nd generation Anker® Astro3 recasts the possibilities of mobile power. Keep multiple gadgets powered up better than ever, whatever your adventure.

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 6 times and large-capacity phones like the Galaxy S4 almost 4 times. Keep multiple device

List Price: $ 0.00

Price: $ 49.99

3 Responses to “Anker® 2nd Gen Astro3 12000mAh Portable Charger Backup External Battery World’s-Fastest (4A Output) Triple-Port Shake-to-Wake Highest-Energy-efficiency Power Pack for iPhone 5S, 5C, 5, 4S, iPad Air, iPads, Samsung Galaxy Tablets, other Android Smart Phones and Tablets (Apple adapters and Samsung 30-pin adapter not included)”

  1. jjceo (jjceo@comcast . net) says:
    115 of 120 people found the following review helpful
    5.0 out of 5 stars
    A beautifully designed and powerful battery with high efficiency and a new shake to start feature!, July 29, 2013
    By 
    jjceo (jjceo@comcast . net) (Greenwood, Indiana) –
    (HALL OF FAME REVIEWER)
      
    (TOP 10 REVIEWER)
      

    This review is from: Anker® 2nd Gen Astro3 12000mAh Portable Charger Backup External Battery World’s-Fastest (4A Output) Triple-Port Shake-to-Wake Highest-Energy-efficiency Power Pack for iPhone 5S, 5C, 5, 4S, iPad Air, iPads, Samsung Galaxy Tablets, other Android Smart Phones and Tablets (Apple adapters and Samsung 30-pin adapter not included) (Wireless Phone Accessory)

    Customer Video Review Length:: 5:14 Mins

    This review is on Anker Astro3 second generation 12000 mAh black battery pack. This battery pack is a real powerhouse of energy and in my test results it performed extremely well in supplying a charging current to an iPad 3 and an iPhone 4. It is also designed to allow you to charge three items at the same time. I also tested the battery pack charging and iPad 3 and an iPhone 4 simultaneously. It comes with an Apple 30 pin connector and other accessories that you need to make it more useful. You may need to use your original charging cables for some devices so take them with you if you need them.

    It is a great power resource to keep your USB recharged devices operating on those long work or school days or while you are traveling. This battery pack is a powerful source of power and many people like me are power users of their smart phones and tablets and need a battery like this. If you are constantly using your phone or tablet then you know that they will run out of power sometime during the day or evening. If you are not near an AC wall outlet with your charger or in your car with a charger what can you do? It is especially important to have some way to recharge if you are traveling in a plane, in the middle of a school classroom or on a bus or train. In addition many of the newer tablets are real power hungry devices and it takes a lot to recharge them.

    Here is a powerful battery pack with three USB ports. It can charge your tablet devices or charge your smart phone and if you want it can do both of them simultaneously. I charged two iPhones at the same time in my testing. One Smart USB output port is rated at 5 VDC and 2.4 Amps and the other two are rated at 5 VDC and 2 Amps. It uses Lithium-Ion battery technology and carries a 12000 mAh capacity. It can output a total of 4 Amps at one time and this is the highest battery pack output that I have seen in my testing so far. This is a large sized battery pack and it weighs in weighs in at 10 1/2 ounces. This battery pack will fit easily into a brief case, back pack or a computer bag or a large purse. I have included a video of the battery’s features and I hope it is helpful to you.

    Here are the output details for the two ports based upon the type of device you are trying to charge:

    Type of product—————–Smart Port——Universal Port
    iPad IOS 5 and above———-2.4 Amps——–1.5 Amps
    iPad below IOS 5—————-2.4 Amps——–N/A
    iPhone IOS 5 and above——-1 Amp————½ Amp
    iPhone below IOS 5————1 Amp————N/A
    Android Phones—————–1.5 Amps——–1.5 Amps
    Android Tablets—————–2 Amps———–2 Amps
    Samsung Galaxy Tablets——2 Amps———–N/A
    Other cellphones—————1.5 Amps——–1.5 Amps

    When I test a battery I do an extensive set of tests that fully charges the battery and then I use it to charge devices and make sure that it is fully depleted when my tests are done. I time each test and document the results as the test progresses. I then calculate the mAh of capacity that the battery supplied and I then calculate its charging efficiency. This process takes from 3 hours to, in very large batteries, about a day for testing. I don’t take any short cuts or guess and every battery has these tests performed on it and documented. This is to assure that the battery is tested and it performs well. If a battery has performed poorly I then run the tests again to verify the results.

    What’s in the box?

    * The Anker Astro3 second generation 12000 mAh black battery pack
    * The battery pack comes with an instruction manual
    * The battery does not come with an AC wall charger. Use the Micro USB charging tip for charging the battery. You can use a computer USB 2.0 port to charge the battery pack but it is 12000 mAh and it will take between 24 to 26 hours. The manual states to use a 1.5 Amp USB wall charger and it will take 8 hours but I recommend using a 2.1 amp AC wall charger if you have one.
    * One charging cable for the battery pack or your smart devices. It is 11 inches long.
    * An Apple 30 pin connector adapter.
    * A nice carrying bag

    This is a very good product and below I have listed its features and benefits as well as my test data for your review. Please take the time to quickly watch the video and if you have any questions send me a comment and I will try to help you.

    The Anker Astro3 second generation 12000 mAh battery pack features:

    * Powerful 12000 mAh capacity specification
    * The unit is compact in size and weighs in at 10 1/2 ounces.
    * Attractively designed and covered in a rubberized coating that is easy to grip and it hides most fingerprints.
    * There is no push button for starting the charging of your device or to read out the battery’s charged capacity using LED…

    Read more

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  2. Twister says:
    51 of 55 people found the following review helpful
    5.0 out of 5 stars
    Mind blowing spec and Super performance!!!, July 28, 2013
    By 
    Twister

    This review is from: Anker® 2nd Gen Astro3 12000mAh Portable Charger Backup External Battery World’s-Fastest (4A Output) Triple-Port Shake-to-Wake Highest-Energy-efficiency Power Pack for iPhone 5S, 5C, 5, 4S, iPad Air, iPads, Samsung Galaxy Tablets, other Android Smart Phones and Tablets (Apple adapters and Samsung 30-pin adapter not included) (Wireless Phone Accessory)

    Yes, another external battery. No, this one is like nothing I have ever tested from Anker or anybody else. It’s not a surprise Anker became one of my favorite companies to review new products from because they are constantly introducing something new and/or improved. That is the only way to stay on top of the game and to earn the top rating of your customers.

    First of all, even with it’s 12000 mAh capacity, this new 2nd gen Astro shrank up in size down to 110 mm x 83 mm x 26 mm which fits very comfortably and feels very nice with its soft touch rubbery finish in your hand. At close to 10 oz in weight you will feel it for sure in your pocket, although it’s slick design is very portable and with included mesh pouch is easy to carry around in your bag/purse/backpack or even pants pocket, as long as you are not wearing skinny jeans :) In contrast to most of the today’s external batteries with dual output, Astro 3 comes with 3 independent full size usb outputs that deliver a whooping 4A of combined current. I checked it by charging Note 2, S4, and Nexus 7 simultaneously and was able to confirm that right on a dot. N2 was charging at about 2A, S4 at about 1A, and N7 at about 1A as well. I was actually timing and monitoring the percentage of battery change, not just relying on Current Charge app. These 3 usb charging outputs are actually partitioned into one Smart output (intended for Apple devices and other android devices) and two Universal outputs which are specifically designed to charge Android devices at maximum speed. There is some custom circuit which determines max speed and optimizes output correspondingly. I also noticed the safety nature of this circuit prevented me from charging both N2 and S4 at 2A each from Universal outputs where N2 was charging at 2A and S4 at 1A, leaving 1A for Smart output, thus confirming it’s not a bulk current sharing between all 3 ports. The input port, micro-usb, for charging Astor 3 is actually a fast 1.5A input which is great since it charges this external battery at 1.5x times faster rate.

    While you charging the battery itself or using to charge other devices, another huge improvement in the design is a circular 10-segment indicator with granularity of 10%. You no longer have to rely on a typical 4-segment led. This one will give you a more precise reading, although it might take you a little while to get used to figuring out on a spot the exact percentage by counting segments before light times out. Once the light turns off, it’s a clean surface design with no leds or buttons. So how do you turn it on or verify led count? Yet another cool innovation, just do a shake of the battery and indicator circle turns on to reveal number of active segments. I really like that motion activated switch, makes it very unique. But trust me, it’s not the most unique part of this new Astro 3 design. As I mentioned in a number of my previous reviews, the labeled capacity of the battery is not what you actually get. It’s the capacity of the cells inside of external battery when it has to be converted to 5V usb interface at the output and then back from 5V to 3.7V inside of the phone. During this conversion ALL external batteries loose anywhere between 30%-35% of its capacity. Well, this new 2nd gen Astro 3 is optimized to a much higher efficiency. I have tested it and can confirm it provides the actual charging capacity of 10,044 mAh, which means a loss of only 16%!!! Basically, the internal battery circuit has been optimized to provide a more efficient output. I have tested a lot of external batteries, and this is the first one I have seen at such high efficiency.

    Overall, I was very impressed with a design and features of this battery, especially with how efficient it’s output. For $49.99 on Amazon its a great value where it provides the actual capacity output equal to other more expensive batteries labeled at around 14000 mAh. With a high output efficiency, 4A of total combined charging current, triple output, and motion activated 10-segment led indicator – I highly recommend it!

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  3. pnhawaii says:
    30 of 34 people found the following review helpful
    4.0 out of 5 stars
    Counterpoint, August 15, 2013
    By 

    This review is from: Anker® 2nd Gen Astro3 12000mAh Portable Charger Backup External Battery World’s-Fastest (4A Output) Triple-Port Shake-to-Wake Highest-Energy-efficiency Power Pack for iPhone 5S, 5C, 5, 4S, iPad Air, iPads, Samsung Galaxy Tablets, other Android Smart Phones and Tablets (Apple adapters and Samsung 30-pin adapter not included) (Wireless Phone Accessory)

    Anker gave me this product in exchange for my honest feedback, so I’ll do my best to write an accurate, unbiased review.

    Perhaps I got a dud or substandard unit, but I haven’t gotten my spanking new 12Ah Astro 3 to charge my ipad3 more than 75% before running out of juice. With the iPad 3 battery capacity being around 11,600 mAh, this equates to about a 27% loss through conversion, much lower efficiency than is advertised.

    I’m also getting less iPhone 5 charges than other users at 5 full charges, which is still good, btw. It has 3 charging ports, (one of them intelligent) whereas most batteries in this class only have 2, and bridged ones at that.

    Fit and finish are excellent – rubber coating provides good grip and the carrying bag is a nice padded mesh pocket.
    For me, the Shake to charge/status is a mixed bag, as it is a novel idea, but I’m wondering how much energy is wasted by the indicator getting lit up while getting bumped all day in your bag or pocket.

    It was a nice surprise that the micro-USB to 30-pin adapter was included, however it is so small that I can see it getting lost very easily. Also, the short USB to micro USB cable gets very HOT when charging that battery itself, even using Anker’s which leads to the next critique, that of charging time. It was good that Anker did not include some cheap cube power adapter, as charging from one of those would be glacially slow. Plugged into Anker’s own 18w 3.6A charger, it still took longer than expected to charge the battery from dead, at approximately 10-12 hours.

    Pros:
    * 3 charging ports,1 intelligent, simultaneous charging of all three
    * Fit and finish
    * 10-segment charge status

    Cons:
    * Wasted energy from shake to charge/status
    * Only 1 cord/tip included
    * Can’t charge and use battery at the same time
    * Slow charging of battery itself

    Overall, I like this battery a lot, though I’m reluctant to give it a full 5 stars based on some of the performance that I’ve seen so far.

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