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Item#: N82E16875968014

Anker Astro Slim3 6000mAh Ultra-Slim Built-In-Cable Dual-Port Portable External Battery Backup Charger Power Bank for Tablets, Smartphones, and Other Mobile Devices

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  • For iPhone 5S, 5C, 5, 4S, 4 (Apple adapters not included), iPod, Samsung Galaxy Note, Galexy S4, Galaxy S3, Galaxy S2, Galaxy Nexus, HTC One X, One S, Sensation G14, ThunderBolt, Nokia N9 Lumia 920 90

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Anker Astro Slim3 6000mAh Portable External Battery

Mobile Power that Stacks Up - Literally

Slimmer and Stronger

At 0.47in., Anker's Astro Slim3 comes with enough power for three or more charges to most smartphones in a compact, easy-to-grip case. Sized especially to stack behind your 4.7in. smartphone for uninterrupted phone use while charging. An LED column unobtrusively lets you know just how much juice is left.


Say Goodbye to Knots

Who doesn't hate tangled cables? With an intuitively-sized micro USB cord for Android, the Slim3 allows you to carry your power all-in-one. Using an iPhone? Plug into the USB port and charge up via your OEM cable. Free yourself from cords and get back to what's most important: life.


No Expense to Speed

What's better than a high-capacity battery that slides into your pocket on-the-go? One capable of simultaneous, full-speed charges. Both ports supply 1A of power with complete safety to your phones, so you can power up in no time and make the most of your day.


For Optimal Use

  • For simultaneous, max-speed charging of your Astro and other devices, check out Anker's new line of 18W / 3.6A car and home adapters.
  • Compatible with all Apple and Android smartphones, tablets and other 5V input USB-charged devices. The iPod nano, iPod touch and some GPS and Bluetooth devices are not supported. The built-in Micro-USB cord may not be able to work with thicker bumpers or cases.

Popular Compatible Models

  • Apple: iPhone 5S, 5C, 5, 4S, 4, 3GS / iPad, iPad 2, iPad 3, iPad 4, iPad mini / iPod (Apple adapters not included)
  • HTC: One Max, One, One X, S, V / Sensation, Sensation XE XL / EVO 4G / Radar 4G / Inspire 4G / Vivid 4G / Wildfire S / ThunderBolt / Incredible 2 S / Rezound / Desire X, C, V, HD, S, Z
  • Samsung: Galaxy S4 / S4 mini / Galaxy S3 / Galaxy Note 3 / Galaxy Note 2 / Galaxy S2 I9100 / Galaxy S I9000 / Verizon Galaxy S3 I535 / AT&T Galaxy S3 I747 / Sprint Galaxy S3 L710 / T-Mobile Galaxy S3 T999 / T-Mobile Galaxy S2 T989 / AT&T Galaxy S2 I777 / AT&T Galaxy S2 Skyrocket SGH-I727 / Galaxy Nexus / Focus S / Infuse (Galaxy Note 10.1, Tab 2, Tab 7.0 not supported)
  • Motorola: X Phone, Droid Razr, Bionic / Atrix 2 / Triumph
  • LG: G2, Nexus 4, Optimus 4X, 2X, V, S, T, 3D, 7
  • Nokia: Lumia 1020 / 920 / 820 / 900 / 710 / 800 / N8 / N9
  • Others: Blackberry Z10 Torch Curve 9900 / 9360 / 9320 / Sony Ericsson Xperia Arc S, Sony Xperia Z, X10 / PSP / Nook Color / MP3 / MP4 / MP5 / GoPro / Amazon Kindle, Kindle Fire, Nexus 7




Capacity 6000mAh
Output 2 x 5V / 1A
Input 5V / 0.8A
Weight 5.4oz (154g)
Size 5.3 x 2.7 x 0.47in. (134 x 70 x 12mm)

Learn more about the Anker 79AN7909-BPA

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the Anker 79AN7909-BPA

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  • Elizabeth F.
  • 12/23/2014 9:05:57 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsLove the idea of it, but...

Pros: Love the idea of the built-in cable, and it's a very convenient size.

Cons: The connection is unstable, both connecting the built-in cable to my phone and connecting a charge cable to the battery pack itself. In both situations I have to hold it at JUST the right angle for it to charge; even when I set it down and walk away, I usually come back to find that some tiny bump knocked it out of alignment and it stopped charging.

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  • Melissa T.
  • 5/23/2014 1:55:54 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsHandy, but could be designed better

Pros: Small & portable. The built in cable is genius. Doesn't take too long to charge the unit itself and while charging my phone it's extremely fast. Went from about 50% to over 80% in < 20 minutes.

Cons: My main complaint is that the metal part/actual plug of the built in charging cable is just "thismuch" too short for the USB to plug in fully to connect & start the charge while the phone is in the case. This is a pretty standard rubbery soft case, so it's nothing bulky or unusual. Taking it out of the case to charge it on the go defeats the purpose of even having a case! I'm currently trying to figure out how best to modify my case so I can use this charger -- but this shouldn't be necessary!

Other Thoughts: I love Anker products and specifically sought out this brand because I knew they were reliable. My friend has a different model which I knew would work with my phone, but I figured this model was the upgrade. I wish I'd gone with the smaller unit now, due to the above con.

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Item#: N82E16875968014
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