Tablet & phone compatibility? Universal max-speed charging? Power-packed & portable? The reinvented Astro Pro2 has it all.

PowerIQTM: Full speed charging. Every device, every time.
Not all USB charging ports are created equal. Standard ports only charge Apple OR Android devices at full speed. Our solution? Smart ports, powered by PowerIQTM technology, intelligently identify your device and speak the language it needs for full speed charging. Coupled with an industry-leading 4.5 Amp output, charge multiple devices all at full speed.

Uber powerful.
20000mAh of power keep you and your gear going, and going – and going. Add 1000% more battery life to an iPhone, 600% to your large-capacity phone (like a Galaxy S4), or 130-300% 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.

Broad Compatibility.
Phones: iPhone, Galaxy, Nexus, One, Droid Razr, Lumia and more.
Tablets: iPad, Galaxy, Nexus, and more.
(List not exhaustive, compatible with ALL phones, tablets and other USB, 9V and 12V powered devices.)

Usage note.
• In order to prevent the battery from malfunctioning, avoid discharging the battery to 0% through the multi-voltage port, and be sure to first select the desired voltage output before using the multi-voltage port.
• 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.

3 thoughts on “Anker® 2nd Gen Astro Pro2 20000mAh Multi-Voltage (5V 9V 12V) 4-Port Portable Charger with PowerIQ Fastest External Battery Power Pack for iPhone 5S, 5C, 5, 4S, iPad Air, mini, Galaxy S5, S4, S3, Note 3, Galaxy Tab 3, 2, Nexus 4, 5, 7, 10, HTC One, One 2 (M8), Digital Cameras, Camcorders and many other 9V / 12V – Charged devices.

  1. jjceo (jjceo@comcast . net) says:

    A versatile and powerful 14400 mAh battery pack for your smart devices and featuring the quality of Anker! This review is on the upgraded version Anker Astro Pro rated at 14400 mAh capacity.This battery pack is very powerful and in my test results it performed well in supplying a charging current to an iPad 3 and an iPhone 4. It is also designed to allow you to charge a netbook laptop or a small laptop that charges with 9 VDC or 12 VDC at 2 Amps.It is a good power resource to keep your USB recharged devices operating on those long work days or while you are traveling. Many people like me are power users of their smart phones and tablets. If you are constantly using them then you know that they will run out of power sometime during the day or evening. If you are not near an AC wall outlet with your charger or in your car with a charger what can you do? Especially if you are traveling in a plane, bus or train. In addition many of the newer tablets are real power hungry devices and it takes a lot to recharge them.Here is a powerful…

  2. Zulma Johnson says:

    Great backup for charging when your normal means are not available. Admit it, there has been times when you have not had easy access to a wall outlet or 12V to charge your cellphone, iPad or other electronic gadgets. It just happened to me just recently on a long trip that took almost over 18 traveling time (car, planes, lay-overs). I was shocked when the planes did not have USB or 12V chargers in any of the aisles (US Airways). This is when the Anker Astro 3 10000mAh came in handy to charge my iPad since one of the flights was 4 hours long and my iPad battery died and I was not aware of it. Keep in mind the iPad will take longer to charge than a cellphone, so after a couple of hours it was only about 45% charged but that was enough for me to use the iPad for the rest of the flight. When it comes to charging my iPhone, it will charge it to 100% full charge in about half the time. The iPad requires at least 2000mA, and devices such as iPhones and iPods require 500mA. Since those particular devices do not have the capabilities of swapping out batteries,…

  3. Jojoleb "jojoleb" says:

    A great device for charging on the go [DISCLOSURE: I received a device from Anker so that I could do this review. Note, however, that the review was not vetted with Anker prior to posting and the opinions of the device are based on my experience with it over the past two weeks.]NOTE: The device has been upgraded by Anker to 14,000 mAH; the device I reviewed was the older, 10,000 mAh versionPROS:10,000 mAH of powerWell made/high production values4 LEDs show charge levelTwo USB ports and one DC portCan use your own cords for USB chargingMany different supplied nibs for a wide variety of devices Automatic power saving modeCONS:Nibs for DC port may not cover all devices (would inquire before purchasing)Shiny top surface reveals smudgesThe Anker Astro 3 10,000 mAH USB External Battery Pack and Charger is an excellent way to power just about any peripheral device when you are away from AC current. This is a simple device that…

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