Anker 2nd Generation Astro Pro Series AK-79AN7905-BA 15000mAh 3-Port USB External Battery Power Bank with PowerIQ Technology for Smartphones, Tablets and Cameras - Black
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- PowerIQ? technology maximizes compatibility with Android, Apple or other devices by enabling charge speeds of up to 3 amps overall or 3 amps per port. Additional 9V or 12V port (Max speed of 4.5 Amps among 3 ports).
- High 15000mAh capacity charges an iPhones seven+ times, a large-capacity phone like the Galaxy S4 four+ times and tablets once.
- Energy efficiency rate 10% higher than the previous generation and many current standard alternatives adds additional usable power. Included 100-240V AC adapter recharges the battery in just 4-5 hours.
- Aluminum construction withstands drops and bumps; slim profile easily slips in your bag. LCD screen accurately displays power level, charging status and voltage selection.
- Package includes: Anker? 2nd Gen Astro Pro 15000mAh External Battery, 100 - 240V AC charger, micro USB cable, 4.3 x 1.6mm to 5.5 x 2.5mm multi-voltage cable, user manual.
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Tablet & phone compatibility? Universal max-speed charging? Power-packed & portable? The reinvented Astro Pro has it all. PowerIQ?: 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. Up your power. 15000mAh of power keep you and your gear going, and going - and going. Add 700% more battery life to an iPhone, 400% to your large-capacity phone (like a Galaxy S4), or 100-200% 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.
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So, I'm sending the item back, regrettably. It's actually an extraordinary piece of work, and I suppose it would be fine for 5 v USB applications, but I'm powering several audio/video portable field appliances, many of which accept external power, all with the same size connector, except for this item.
Geez, I so hoped it would work. I almost considered keeping it anyway, trying to justify it for recharging my phone or ipad or something, but for the cost, I just couldn't justify keeping for a speculative purpose.
Highest marks for the company's excellent address of the functionality, simplicity, elegant design and superior presentation. It works beautifully, except in my case, where the 12 v application is just simply goofy. So disappointed. Hope they come around and fix this or provide cables or adapters in future product releases.
One of the main uses i get from the battery is powering portable speaker systems. For example, the battery will power the Creative T20 or the Logitech wireless boombox perfectly (the latter with full power sound, rather than the diminished sound when using its own poor builtin battery). Both of these speakers even work with the included coax power cord included with this battery and with the proper polarity! Im sure other devices may also, but please be aware you should always check polarity for your intended device first.
I can also use this battery in the field to charge other batteries, including RC models, and photo equipment, as well as powering flashes, ham radios, scanners, etc.
The one problem i have encountered is the auto-power off system. I've built several custom speaker systems using a T-amp (a very efficient small stereo audio amplifier) which even though the system is playing, at very low volumes the battery will power itself down after several seconds. If the draw is higher (at higher volume) it is fine, but i wish the circuitry was at a user-adjustable sensitivity or just at a lower threshold so it could be used with very low drain circuits and not power off...other than than one gripe, this is an utterly amazing and versatile battery capable of so many uses other than just recharging cell phones!
Seems solidly built, is very small and powerful for its features.
Be aware that the voltage regulator does use power in itself, so the useful amp-hours (the stated 10,000 mAh) are diminished some when upconverting voltage, but this is a small price to pay for such a highly useful feature.
Highly recommended without question!!
I ordered one of these and was impressed with what a nice looking device it was. Off the bat, it charged both of our phones and my wife's tablet. However it wouldn't charge the Asus.
After a little on line research (I've never had a technical problem that no one else has had.), I found out that the Asus requires a minimum of 12 volts to charge. Well the Anker Astro 3 has a 12v port (the 3E dosen't, I believe.) What I needed was a USB FEMALE-TO-FEMALE adapter to make all of the stuff provided by Anker hook up to my Asus charging cord. I ordered one from Amazon for 67 cents a d free shipping from Hong Kong (can you believe it?) It took about six weeks to get. Now my Asus tablet charges just fine.
My only complaint is that Anker doesn't supply a bag to carry the Astro 3 and a couple of cords in. (Did I mention that it will charge two devices at once?)
Anyway, I found a large enough cloth bag and happily tote it every where.
It sits on couch between us during tv watching (and internet surfing) ; it is with us in the car when one phone is charging on the car charger and the other one dies. It is with us at restaurants where we eat, talk and surf (we like to share the news of the day or report on our friends from a table at Denny's okay? We are not antisocial :-D) . Great device! We love it.
Oh yes, the other 4. Well it's. Christmas time and we're giving them as gifts to our two daughters and to two of our grandsons who are away at school.
Most recent customer reviews
Holds a charge for a long time
Also, doesn't hold a charge well which is basically the whole point of this item...