home Deals Anker® 2nd Gen Astro 6400mAh Portable Charger External Battery Power Bank with PowerIQ™ Technology for iPhone 6 5s 5c; iPad Air 2 mini 3; Galaxy S5 S4; Note 4 3; Nexus 6; LG and More (Black)

Anker® 2nd Gen Astro 6400mAh Portable Charger External Battery Power Bank with PowerIQ™ Technology for iPhone 6 5s 5c; iPad Air 2 mini 3; Galaxy S5 S4; Note 4 3; Nexus 6; LG and More (Black)

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2 thoughts on “Anker® 2nd Gen Astro 6400mAh Portable Charger External Battery Power Bank with PowerIQ™ Technology for iPhone 6 5s 5c; iPad Air 2 mini 3; Galaxy S5 S4; Note 4 3; Nexus 6; LG and More (Black)

  1. 599 of 628 people found the following review helpful
    5.0 out of 5 stars
    A superior battery in every way you can compare it!, October 22, 2013
    By 
    JJCEO (Greenwood, Indiana) –
    (TOP 10 REVIEWER)
      
    (#1 Hall OF FAME REVIEWER)
      

    This review is from: Anker® 2nd Gen Astro 6400mAh Portable Charger External Battery Power Bank with PowerIQ™ Technology for iPhone 6 5s 5c; iPad Air 2 mini 3; Galaxy S5 S4; Note 4 3; Nexus 6; LG and More (Black) (Wireless Phone Accessory)

    Customer Video Review Length:: 6:10 Mins

    This battery pack is beautifully packaged with a black rubberized coated case. The black rubber coating is slightly textured so it is not a fingerprint magnet and it improves the looks of the case and your grip. It is a powerful battery pack rated at 6000 mAh of capacity and the test results were spectacular! I put together a video of the unit and the test results for your review.

    The battery weighs in at 4 3/4 ounces. The battery pack has one USB output port that outputs 5 VDC at 2 Amps. It is a smart USB port whose output current will never exceed the capacity of your smart device’s current charging capability. The battery is extremely energy efficient and its performance is 10 percent or more above the standard performance of a normal designed external battery. This is because of the superior quality of the battery cells used and the advanced control circuitry within the battery.

    During the testing the temperature of the battery pack never even exceeded ambient room temperature. To start your device charging you connect it with the proper cable and the battery pack charging starts automatically. To check the battery pack charge status you have to shake the battery and the LED ring lights up.

    This product is outstanding and I rate it at 5 stars. If you are a business person or a student and have to depend on your tablet or smart phone for long periods of time without the ability to get to an AC power source then this is a good battery to own. This is good for those who travel a lot or camp out. Now you can watch your movies or listen to your music on those long airline flights. While this battery pack can put some charge into your tablets it is more ideal for use in recharging your smart phone. Because of its size it is great to drop into a purse, briefcase or a pocket.

    You should note that I did not operate my tablets or phones while I charged it but the WIFI and phone transmitter were left on. 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.

    Items in the box:

    * The Anker 2nd Gen Astro 6000 mAh battery
    * The battery pack comes with an instruction manual.
    * A USB charging cable that is 12 inches long.
    * A nice carrying bag for the battery
    * You may have to use the charging cable that comes with many of your own devices.

    Anker 2nd Gen Astro 6000 mAh External Battery Pack Features:

    * Powerful 6000 mAh capacity
    * The unit is compact and weighs in at 4 3/4 ounces.
    * Attractive design with a black rubberized external coating. The black rubberized coating is slightly textured so it is not a fingerprint magnet and easy to grip.
    * The specifications and ports are nicely labeled on the case.
    * It has 10 LED status lights in a ring located on the front that indicates the battery charge level. You have to shake the battery and the LED ring will light up and indicate the battery charge level. Each LED represents 10% of capacity.
    * This is an ideal size and power of battery to carry in a purse, briefcase or backpack for your smart phone!
    * There is one USB power output. It is a USB port rated at 5 VDC and 2 Amps and it is a smart USB port the uses only the current required by your device to properly charge it as quickly as possible.
    * When you plug in a device then the charging process of your device begins automatically.
    * The battery pack uses Lithium battery technology.
    * The battery pack can be recharged 500+ times
    * Warranty is 18 months
    * The battery pack does not come with an AC wall charger. It is specified to be charged with 5 VDC at 1 amp. It will charge in 5 to 6 hours at 1 Amp input. You can charge the battery using a USB 2.0 port of your computer that is rated at 500 mA but the charging time will be 11 to 12 hours.
    * The battery is extremely energy efficient and its performance is 10 percent or more above the standard performance of a normal designed external battery. This is because of the superior quality of the battery cells used and the advanced control circuitry within the battery.

    Test charging devices to measure the output capacity:

    I charged the battery pack fully before I started my test. I started with a Kindle Fire at 25% and the…

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  2. 143 of 160 people found the following review helpful
    5.0 out of 5 stars
    Super compact design, high charging speed, super value!!!, October 17, 2013
    By 
    Twister
    (TOP 500 REVIEWER)
      

    This review is from: Anker® 2nd Gen Astro 6400mAh Portable Charger External Battery Power Bank with PowerIQ™ Technology for iPhone 6 5s 5c; iPad Air 2 mini 3; Galaxy S5 S4; Note 4 3; Nexus 6; LG and More (Black) (Wireless Phone Accessory)
    After rolling out new 2nd generation versions of Astro 3 (3 outputs) and Astro 2 (2 outputs), now is a turn for Astro with a single charging output. While Astro 3 was very impressive with three outputs and 12000 mAh capacity, it was a relatively large and heavy device, which is expected. Astro 2 shrunk it down to 2 outputs and 9000 mAh capacity with a more pocket friendly footprint. Here with single output Astro and 6000 mAh capacity the size was reduced down to an awesome compact size which you can store even inside of a very small purse. But don’t let the small size fool you – you still get all new 2nd gen design with every bell’n’whistle of Astro 2 and 3. So let’s take a closer look.

    Continuing with their environmentally friendly packaging, battery came inside of a neatly packaged box which contained a battery itself, a manual (always very detailed), and accessory box with usb to micro-usb cable and a mesh draw-string storage bag for a battery and a cable. Now let me tell you about the size of this battery – its is SMALL!!! Weighting around 130g and with a size of 90mm by 45mm and thickness of 25mm – it will easily fit in a palm of your hand where you can make a fist hiding it inside. That’s how compact it is. With a new rounded design and smooth edges, the hard plastic shell is lined with a soft touch rubbery finish. You get one micro-usb battery charging port (1A speed to charge the battery itself) and one full usb smart output port for any Android or Apple device. The output supports a maximum charging speed of up to 2A. In my quick test with OEM usb cable I confirmed a charging speed of 1.5A using my Note 2. The speed will obviously vary depending on the cable you use, so keep that in mind and use usb cables with thicker wires.

    Just like with Astro 2 and 3, this 2nd gen device uses a new 10-segment circle LED indicator to show you the charging progress of the battery or the remaining charge on the battery in increments of 10% thus giving you a higher precision reading. Most of the other batteries usually include 4 LEDs to indicate 25% increments, but with Astro you are getting a better precision. There is no power button anywhere around smooth surface of this battery. To start the charging or to check the remaining capacity you just shake it and display LED comes alive. Also, considering actual capacity of any external battery is typically 30% less then advertised value, in case of 2nd gen Astro a more efficient conversion circuit is used which gives close to 80% efficiency, so you can count on about 4700-4800 mAh of charging power. Considering super compact shape of this battery, this is very impressive and perfect as a portable emergency charge you can take with you anywhere.

    Overall, the design, the efficiency, the charging speed, and compact size of this battery makes it a very attractive package. It is also very unique and sets it apart from competition. Add to that Anker’s 18-month warranty and great support – with introductory price of $29.99 on Amazon this is one fantastic value. I highly recommend it!

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