Bargain Anker® Astro2 8400mAh Portable Dual-Port External Battery Pack
Power Bank Backup Charger with Built-In Flashlight for Smart phones,
Android phones, PSP, GoPro, iPad mini, iPhone 5S, 5C, 5, 4S, 4 (Apple
adapters not inclued), Samsung Galaxy S4, S3, S2, Galaxy Series
Smartphones, HTC One X / V / S, Sensation, EVO, Nokia Lumia 920 N9,
Motorola Razr, Blackberry Z10, Sony Xperia Z, Google Glass and More
Anker® Astro2 8400mAh Portable Dual-Port External Battery Pack Power Bank Backup Charger with Built-In Flashlight for Smart phones, Android phones, PSP, GoPro, iPad mini, iPhone 5S, 5C, 5, 4S, 4 (Apple adapters not inclued), Samsung Galaxy S4, S3, S2, Galaxy Series Smartphones, HTC One X / V / S, Sensation, EVO, Nokia Lumia 920 N9, Motorola Razr, Blackberry Z10, Sony Xperia Z, Google Glass and More Review
Unplugged mobile power goes ultimate.
Powerful confidence.
With enough power to top off your smartphone up to 4 times or your tablet once, travel abroad, spend a night on the town or do something more mundane - all with confidence your gadgets won't die.
Bag-sized portability.
Designed for portability, this powerful bar-shaped battery slips easily into your bag for use when you need it on the go. No need to worry about it bouncing around in there, the rugged, high-grade plastic outer shell takes in-bag abuse with ease.
All-in-one charger.
Not just powerful and portable, but also delightfully detailed. Check the remaining power on the four-LED power meter with a click of the power button. We've also included 3 broadly-compatible adapters and 2 cables. Pack the combo in the travel pouch and have all you need for mobile charging.
For optimal use.
• For simultaneous, max-speed charging of your Astro and other devices, check out Anker's new 25W 5-port wall charger or dual-port 24W car charger.
• Compatible with all Apple and Android smartphones, tablets and other 5V input USB-charged devices. The iPod nano, Samsung and Asus tablets and some GPS and Bluetooth devices are not supported.
Get to know us.The Anker® Astro external battery has been voted #1 in class by thousands of online reviewers, while our renowned customer service has made us a fan-favorite across the web. Every sale includes an 18-month, worry-free guarantee to prove the importance we set on quality. After all, we're customers too.
Price :
* Get the best price and special discount only for limited time
Anker® Astro2 8400mAh Portable Dual-Port External Battery Pack Power Bank Backup Charger with Built-In Flashlight for Smart phones, Android phones, PSP, GoPro, iPad mini, iPhone 5S, 5C, 5, 4S, 4 (Apple adapters not inclued), Samsung Galaxy S4, S3, S2, Galaxy Series Smartphones, HTC One X / V / S, Sensation, EVO, Nokia Lumia 920 N9, Motorola Razr, Blackberry Z10, Sony Xperia Z, Google Glass and More Feature
- High 8400mAh capacity; 4 full charges or add 33 hours of talk time to your iPhone 4S / 4G / 3GS, 2-3 full charges for Samsung Galaxy S III or a charge for your tablet.
- 4-LED power meter shows remaining capacity. Flashlight included for low-light environments.
- High quality Samsung Grade A Lithium-ion cells ensure reliability with 500+ recharge cycles over the life of the battery.
- Output: 5V / 2A + 1A dual USB ports for charging two devices simultaneously. Input: 5V / 1A. Use a 1A adapter (not included) for fastest charging time (8 hours).
- Package includes: Package includes: Anker® Astro2 External Battery, Micro USB wire, instruction manual, travel pouch.
Anker® Astro2 8400mAh Portable Dual-Port External Battery Pack Power Bank Backup Charger with Built-In Flashlight for Smart phones, Android phones, PSP, GoPro, iPad mini, iPhone 5S, 5C, 5, 4S, 4 (Apple adapters not inclued), Samsung Galaxy S4, S3, S2, Galaxy Series Smartphones, HTC One X / V / S, Sensation, EVO, Nokia Lumia 920 N9, Motorola Razr, Blackberry Z10, Sony Xperia Z, Google Glass and More Maybe you should visit the following website to get a better price and specification details
Costumer review
117 of 120 people found the following review helpful.
Well built and attractive quality battery pack.
By r.garcia
After using this battery pack for about a week, I make the following observations, in order of personal significance:
1. Build quality: The battery pack feels, in a word, solid. There is no flimsy plastic deflection if you press on it and no creaky or uneven seams.
2. Looks: The pack looks great. Yes it is a fingerprint magnet, but it also wipes cleanly to a beautiful gloss to match most smartphones out there.
3. Utility: Very versatile. One port for smartphone and most usb powered gadgets, the other higher amperage port for more power hungry devices, like tablets. I've even used this to charge AA batteries with a usb AA charger. There's nothing I've tried that this won't charge. Also has a built in led "flashlight," but more on this later.
4. Convenience: This pack will charge easily with any usb charger. Standard micro usb connector means you won't have to go searching for a special cable to plug this in and charge it. This pack will also charge as you are using it. This may seem silly if you're at home, plugging this into your computer or power supply, and your phone into the batter, but if you ever use this with a portable solar charger, as I am with the Goal 0 Zero 19010 Guide 10 Plus Adventure Kit Nomad 7 Solar Charger & 4 AA Battery USB Power Pack, then it is great to charge while the battery pack as per the available light, while still being able to charge your device with the battery pack with reserve and stable power. The led light is also very convenient. Not very bright but it's there and charged up when you need a quick light in the dark, and most importantly, so you can see your cable as you plug it into your device (great for iphone, as there really is no way to feel which side is up or down on the charger cable)
5. Support, Brand Name: Honestly I never heard of the brand name. At first glance, it seems like just an "off-brand" made in china product, and the packaging and manual even has chinese alongside english. But the packaging is attractive and not a generic box like you typically see with other generic products. While I have not yet had to call on the company for support, the quality packaging and literature would lead me to believe that this company is out to make a name for itself, and therefore would be responsive. We shall see. The instructions, on the other hand, were terrible. Very engrishy. But the product is so simple and well designed, that I didn't need the instructions.
Final observations: Again, great product, feels very solid and seems to be of high quality. No problems yet, charges everything. Worth the money.
108 of 121 people found the following review helpful.
Nice design and size but subpar charging capability, long charging time, and price inflation.
By N. Ta
Here is my unbiased review of Anker Astro 2 8400mAh external battery pack:
Charge Efficiency: Its rated at 8,400mAh as it's capacity. The lithium ion battery may have that capacity but it's ability to charge other devices isn't so hot. I understand the Anker power bank needs power of its own to operate and conversion from 3.7v to 5.0v takes energy. I wasn't expecting 100% of 8,400mAh to fully charge into other devices totaling up to 8,400mAh. But I was expecting it to be efficient. I did 5 charge and discharge cycles (though it may not be necessary on lithium batteries but I did it anyways to calibrate it) then I went on with my test to see how much it can charge my Kindle Fire, HTC Evo 3d, HTC Evo, Kindle reader, and portable speaker. Yes, the devices I were charging were completely off to preserve energy for charging only instead of also powering it on. The first charge cycle it totaled 5,425mAh (64% efficiency), 2nd is 6,032mAh (71.81% ), and 3rd is 5,280mAh (62.85%). This means ~28% - ~37% of its 8400mAH capacity is unusable. I predicted at least ~20% of 8,400mAh is powering itself which is 1,680mAh and perhaps some energy is loss through heat. I concluded that the circuitry work on it is not as good and/or the lithium ion battery isn't of "higher" grade technology (ie. Panasonic & Sanyo 18650). It fell somewhat below my expectations regarding its most important function. However, I do have an Incredicharge I-11000 with 11000mAh capacity and it is about 65-70% efficient but much bigger in size. Perhaps this is the best we can get with portable battery technology. Another alternative is to buy a high quality spare battery(ies) specifically for your cell phone as 100% of it's rated capacity will be used to power that device. Though, this is not achievable with Apple products or others without removable batteries and that this method can be expensive and impractical if you plan on buying many different batteries for various products.
Time to Charge Anker 8,400 mAh: It takes nearly 8 hours to charge with the included cord and adapter. DC input is rated at 5v/1.5amp which is good, however, the included wall adapter is only 1amp. So the charging could have been quicker if it was included with a 1.5-2amp usb wall charger. Would definitely not charge this thing via a computer (.5amp). By pointing this out it does not mean it's a pro or con since it is accurately stated under product description.
Design: Very nicely polished and sturdy case. USB ports and LED light function as described without any problems. The case is the size of a bridge sized Bicycle cards. Easily carry with you where ever. It is dense and not hollow so I would say it is high quality.
Mislabeling: At the time of ordering Anker Astro 2 I noticed it indicated the 2 USB port is rated at 1amp & 2amp. However, upon receiving the package it is clearly 0.6 & 2amp. 0.6amp is adequate for phones but that is 40% slower than 1amp. I believe another customer has pointed this out in an earlier review. It appears they have fixed this error.
Price: I purchased this mid April for $46.99 but now it is $49.99. Still not a bad deal but price inflation due to more stellar reviews isn't cool. I noticed some feedbacks were left by those who has gotten a free sample for review, could there be a correlation in price increase and demand based on reviews?. Just wanted to let you know the Incredicharge I-11000 I purchased in March went from $49.99 to $79.99 in a span of 1 month. Now I cannot even search for this product on Amazon.com anymore.
Customer Service: LaptopMate replied to emails quickly and seems very concern about customer satisfaction. Their 18 months warranty is the most of all power bank I researched.
Conclusion: Astro 2 is very convenient device that comes with plenty of adapters (btw, it doesn't come with Apple adapter so use your own). I like the idea of charging on the go but plan ahead to charge the Astro 2 as it takes very long. You can considering looking at the Powergen 8400mAh battery which is an identical replica of each other and same price but the Powergen comes with an Apple adapter. It seems like somewhere in Shen Zhen or Guandong China they make these without branding and you can get them in bulk with customization for advertisements. Ebay "Power Bank 8400mAh" and you will see plenty of clones but they have short or no warranty. I hope this review has been helpful to the readers.
31 of 33 people found the following review helpful.
Best of the bunch for travel
By Liberal Republical
Lots of devices need more than 1A to charge but there are very few battery packs that will put out that much current. In fact there are few 12V-5V converters that will do that. This battery pack has both the capacity and current output (2A) to charge pretty much anything that takes 5V - phones or tablets. I like the charge indicators and also the flashlight, for emergencies. The instructions were in both chinese and english - and they were adequate. I tried the battery on an iPhone, Kindle Fire and HP Touchpad. All charged correctly. Note that there are two USB outputs - one is limited to 0.6A and the other to 2A. Use the higher current for tablets.
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