From Anker
List Price : No list price available
Price : $43.99
Product Description
With such massive capacity, in such a compact package, the Anker® Astro E4 is perfect for flights, road trips, or just any time you're away from an outlet.Enough power to go around.
Marooned? In transit? Forget your OEM adapter? With the Anker® Astro E4, prolong your battery life multiple times, wherever you are. Holding enough power to charge a smartphone 3-6 times (depending on your phone's battery size), keep your gadgets going for days and still have juice left to share.
Strong but never slow.
In addition to capacity, the Anker® Astro E4 sports two concurrent, high-speed ports. So whether you're charging an Apple or Android device, you'll get the most out of your technology. We've also included connective adapters to ensure compatibility with most devices.
Designed around the details.
Just because the E4 packs a punch, doesn't mean it can't look nice. We went with a smooth, ebony finish to keep you traveling in style. Simple, unobtrusive features, such as one-touch status LEDs and a built-in flashlight, give you everything you need out of a battery without sacrificing aesthetics.
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, the Samsung Tab2, Asus tablets (not include the Nexus 7), the LG G2 and some GPS and Bluetooth devices are not supported.
• To ensure complete safety and best performance, we strongly recommend using your device's original cable, a third-party certified cable (such as MFI) or our included cable.
Product Details
- Amazon Sales Rank: #1062 in Consumer Electronics
- Color: Black
- Brand: Anker
- Model: AK-79AN13K-BA
- Dimensions: .94" h x 3.03" w x 4.96" l, .68 pounds
- Battery type: Lithium Ion
Features
- Huge capacity (13000mAh) charges the iPhone almost 6 times, large-capacity phones like the Galaxy S4 more than 3 times or about an 80% charge to an iPad 3 / 4.
- Super-fast charge output (5V / 3A total) through dual USB ports (5V / 2A and 5V / 1A) allow for simultaneous charging of your iPad, iPhone, Android, and more at high speed.
- Smooth, ivory/ebony varnish allows you to power up in style, while 4 status LEDs keep you informed of remaining capacity. Built-in flashlight for dark or low-light environments.
- Premium lithium-ion battery ensures quality, supplying 500+ recharge cycles over a lifetime. Use a 1.5A adapter (not included) with the included USB cable for fastest charging (6.5 hours).
- Package contents: Anker® Astro E4 External Battery, Micro USB cable, travel pouch, instruction manual.
Customer Reviews
Most helpful customer reviews
163 of 176 people found the following review helpful.
Like a wall outlet, anywhere... even while mobile
By Daniel Doron
Watch Video Here: http://www.amazon.com/review/R2Y58FO5TCNFFC Like a wall outlet, anywhere... even while mobile
I go over different aspects in my 5-minute video review, so please check that out for more info.
Frankly, I wouldn't have thought to buy this for myself. I would have thought, "I can manage... I HAVE managed without this portable power plant of a battery so far..."
And I have, for years, managed.
But I received the E4 as a review unit (see disclosure below), and just threw it in my bag with my things when I went out.
And once you realize you've got such in incredible reservoir of power everywhere with you, well, let's just say your daily behavior that was previously subconscious to you... changes.
First of all, for packing as much power as it does, Anker pulled it off in the sleekest possible package in my opinion. Sporting a glossy black finish with a silver matte band, it feels in the hand like two black iPhone 3GSís facing each other; only a touch heavier, taller, and wider. Just the same, it feels as solidly build and sturdy as youíd hope for in this E4. Nothing feels flimsy or neglected in itís build quality or design.
If you regularly find yourself wanting to charge your devices, or feel you're making too many compromises for the sake of battery life (airplane mode, lowering the brightness, etc.), get yourself an external battery. Throw it in your bag, and forget about finding outlets in public spaces anymore.
Even if that doesn't happen for you often, it's perfect to take along on trips (use it for rechargeable camera batteries!), to the airport... you get the idea.
I think what surprised me the most was that I was finding it useful where I never would have guessed, because it never would have dawned on me. For example, I wanted to show my friend some videos on my iPad at his place, while we wait for another friend to arrive. But my iPad didn't have much juice left, so we could ordinarily only watch it where there was an outlet, and even then I'd need to be sure I had an extra-long cable so we could sit comfortably. Since I brought this wonder along, we took it outside, put it on a table with the E4, and cranked up the brightness. No problem.
I have to run around a lot in the city for my work, so it's great to be able to charge my iPhone or iPad with the E4 in my bag while I'm, say, on the subway. Remember though that any devices will warm up when charging, so make sure they're not getting too hot in there.
And last but not least, because of the massive battery capacity this E4 has, I don't have to "baby" it, making sure it's full before every outing. Even at half, its far more than enough for my iPhone, and will hold me through a few hours of video on my iPad.
One tip: If you don't have one, invest in a "2 Amp" or "2.1 Amp" USB wall charger. Chargers supplied with cell phones are often 1 Amp, while tablets like the iPad come with a charger that's at least 2 Amps. Think of amps like rate-of-flow for electricity; the more amps, the more juice travels in a given time.
Because of the E4's immense battery capacity, you'll want to charge it as fast as possible, because otherwise it won't even be done overnight. Hooking it up to a computer will take FOREVER, so I don't advise doing that.
If you're looking for something smaller, I'm a big fan of the Anker Astro Mini (link at bottom), though the compactness comes at the loss of a lot of battery capacity. Still, it's great as a "peace-of-mind" tagalong.
Full disclosure: Anker gave me this product for in exchange for my honest, unbiased feedback.
1. Anker® Astro Mini 2600mAh External Battery Pack
110 of 124 people found the following review helpful.
Slick Looking External Power for Every Mobile Need
By Joseph Siu
Since Anker gave me this product in exchange for my honest feedback and review, I decided to take the Astro E4 power bank through its paces to see how it performs. I was quite pleased with the results; this is one solid external battery. Details below.
The battery came in a nice-looking box along with a carrying pouch and an interchangeable-head USB cable; the cable came with three adapter heads: Micro-USB, Mini-USB, and iPhone/iPad (30-pin). The power bank itself has a smooth, black plastic shells and is quite elegant-looking with its chrome button and silver-colored frame. The unit has 4 bright, blue LED lights that reveals roughly how much battery life is left. The Astro E4 is somewhat heavy, but it is expect of a power bank of this large a capacity; the best way I could describe it is probably holding 2-3 rolls of quarters in your hand (not bad, right?). Due to its size and weight, this external battery is a perfect companion for your day-pack (messenger bag, backpack, purse, etc.)
In terms of real-life performance, I ran tests using an iPad 2 and a Google LG Nexus 4, on multiple charge cycles. After charging the power bank to its fullest, I was able to get around 9200 mAh out of the the unit, which is around 71% of the stated capacity. Almost all external batteries perform below stated capacity, and some by a lot, so getting this amount of juice out of the Astro E4 is pretty decent. It is important to note that the charging devices were left on and drawing power for Wifi and cell signal; the actual capacity is probably even higher.
To wrap up, here are my pros and cons:
PROS:
- Great design: nice size, weight, look, and feel
- Large capacity: this thing will charge a powerful tablet once and a cellphone multiple times
- Dual USB ports: can charge two devices at once
- 2A output: one of the USB port outputs 2A which comes in really handy as most tablets and now some phones require this to get max charge speed
- LED flashlight: energy-efficient LED flashlight allows the battery to double-duty as a flashlight, even when there very little charge left
- One-button simplicity: seriously easy to figure out with only one button to push for turning on and charging
- Auto-off: unit shuts off automatically after timed duration when it senses that there is nothing drawing power
CONS:
- Adapter heads: interchangeable adapter heads tend to get loss after a while, making the included USB cable useless
- BYOACC: Bring-Your-Own-A/C-Adapter may cause frustration for some as one is not included
- Misleading LED indicator: even on very low battery level, the unit will still show one light; showing none would be better
- Purple hue to flashlight: this might be just my unit, but the flashlight has a heavy purple/blue hue to it and not as white (or bright) as expected
Final verdict is a 4-star from me, which means if you're in the market for a powerful battery back, buy this thing as you probably will be hard pressed to find a better one with this quality/price balance. I reserve 5-stars for products that is perfect in my book and I love using. This one is nearly there but did leave me with some slight frustration at the misleading charging indicator, the missing A/C adapter, and the dimmer purple flashlight.
90 of 101 people found the following review helpful.
Charger just stopped after 3 weeks
By Robert D. Banks
Charger will not charge. Charger just stopped functioning after 3weeks. Very disappointed in the lack of dependability and quality. Cost of return to high for value of charger.
I am compelled to amend my above review of this product based on very recent experience. I am motivated to so after a very pleasant and productive response from customer service of the Anker Company. Obviously they actually read my product review and reached out to me in a very timely manner. They listened to me and made arrangements to send me another charger immediately while apologizing for my inconvenience. I am more than willing to try this product again based on the company's confidence and support of their product.
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