Anker Astro E4

9.6/10 AVG.
RATING

  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4
  • Anker Astro E4

Specs / Features


The Anker Advantage: Join the 10 million+ powered by our leading technology. | Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge speed up to 3 amps. | Huge Capacity: Charges the iPhone 6 five times, the iPhone 6 Plus or Galaxy S5 over three times or the iPad Air once. Safely recharges with a 2 amp or higher output charger (most phone chargers have only 1 amp). | Superior Quality: Premium LG cells, cutting-edge circuitry and a sturdy gloss exterior ensure reliability and safety. To activate the LED flashlight, hold or double click the power meter button. |... More

The Anker Advantage: Join the 10 million+ powered by our leading technology. | Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge speed up to 3 amps. | Huge Capacity: Charges the iPhone 6 five times, the iPhone 6 Plus or Galaxy S5 over three times or the iPad Air once. Safely recharges with a 2 amp or higher output charger (most phone chargers have only 1 amp). | Superior Quality: Premium LG cells, cutting-edge circuitry and a sturdy gloss exterior ensure reliability and safety. To activate the LED flashlight, hold or double click the power meter button. | What You Get: Anker 2nd Generation Astro E4 Portable Charger External Battery Power Bank, Micro USB cable, travel pouch, welcome guide, our fan-favorite 18-month warranty and friendly customer service.

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Specification

Specification
Brand Anker
Model 79AN7925
Size 15 x 6 cm (5.9 x 2.4 in)

Reviews summary

9.6/10AVG.
RATING
Based on 9 reviews

What's good  

  • 13,000 mAh capacity
  • 3A output
  • Lightweight design
  • Power level reader
  • PowerIQ

What's bad  

  • Won’t charge older devices with less than 80mA drain
  • Flashlight is a little weak
  • No wall adapter in kit

External battery packs become more and more affordable by the day. As one of the big names in the scene, Anker keeps pushing the envelope to provide better storage and features to make your life easier. With the Astro E4, they’re making 13,000mAh of power small enough to fit in your pocket. But a battery is only as good as it’s ability to charge dependably. How do the reviews stack up? Let’s take a look.

At just 4.9 inches tall, 3 inches wide and 0.9inches thick, the battery pack isn’t much larger than many smartphones. Weighing just over a half a pound, you can toss it in your pocket or bag and barely notice a difference. Reviewers loved the design, though some noted accidently pressing the power button on occasion.

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Numerous reviewers tested the batteries capabilities and found an astounding 92-percent efficiency. This means less time and energy wasted transferring power. To help you keep tabs on the power level of the battery pack, Anker placed four LEDs on the front of the pack. These represent 25-percent charge intervals making it easy to check power levels at a glance.

The charger includes a carry case, multiple adapter tips and a retractable charge cord for convenient charging on the go. You can recharge it from empty in as little as eight hours using a 2A wall adapter, making it perfect for overnight charging for use throughout the day. It also includes a flashlight for those outdoor excursions or finding something in your bag on a dark train or flight.

The pack has two USB ports--One for Apple and one for Android--with output up to 3A to accommodate tablets and other high-drain devices. Features include automatic shut off when your connected device is done charging and Anker’s PowerIQ technology. Anker claims this senses the optimal power level to charge your phone or tablet and speeds up charging times. Reviewers all agreed that it made a major difference.

Overall, reviews of the Anker E4 are positive. Massive storage, sleek design and affordable pricing make it a leader in the battery pack market. Battery Pack Reviews calls it, “A game changer in the industry of battery packs.”

Reviews (9.6/10 Avg. rating)


Gadget Heaven

Very large capacity

from Gadget Heaven
As long as you know you’ll need it (camping, hiking, playing ingress etc) the Anker Astro E4 is incredibly useful, it charges devices quickly and isn’t too heavy to be prohibitive. However, lack of included wall adapter and dubious inclusion of an LED light prevent this from being the perfect device... Full review
Gear Diary

Surprisingly small and light for something with a battery this large

from Gear Diary
The 2nd Generation Astro E4 13,000mAh External Battery has power to get you through a busy day and then some. Depending on the device it can charge a smartphone anywhere from three to six times; it will charge an iPad Air once. All of this in an external battery that measures just 5.9 × 2.5 × 0.9in and weighs just 10.4oz... Full review
Examiner

Smaller size, larger power capacity

from Examiner
With LG Grade A cells and premium chips onboard to ensure reliability and safety, the Astro E4 will supply 500+ recharge cycles over a lifetime. It's huge charging capacity will provide enough power to keep most devices charged for days. The Anker Astro E4 External Battery is available on Amazon for the amazing price of only $29.99 with free shipping on orders over $35. That is truly a small price to pay for the peace of mind you will have knowing you have all that power available in an emergency or your next camping tip... Full review
Best Power Bank Reviews

A compact high capacity battery

from Best Power Bank Reviews
There is little more that can be said about the Anker 2nd Gen Astro E4 13000mAh External Battery Portable Dual USB Charger Power Bank. It is an effective solution to the problem of running out of battery power at the worst possible moment. As long as your device charges through the micro USB port (my off brand Android tablet doesn’t), this is a must have and a great value for the increased peace of mind... Full review
Sunferno

Most sleek, high capacity charger

from Sunferno
The power bank packs a punch. The only disappointment being the reduction in the battery efficiency compared to Astro 10,000mAh, having the potential of a traditional 80% efficiency 15000mAh battery,(86% of 13000mAh=11200mAh, 80% of 15000mAh=12000mAh) at a cheap price and at a warranty period of 18 months the Anker Astro E4 is easily the best selling power bank for the month.. Full review
Android Police

It might be overkill, but it's good overkill

from Android Police

You're looking at $79.99 for this battery on Amazon, which, admittedly, is a lot for portable power. This isn't the product for someone who just needs a little extra juice on a short flight or to give their phone a little boost at the end of the day. This is a battery for a serious traveler, or for someone with three or four devices, some of which need DC input. The Anker Astro Pro2 also makes sense of you're sharing a battery with a few others. Maybe you can go halfsies on it.

There is very little negative I can say about this battery. For almost all intents and purposes, it's a... Full review

Amazon.com Reviews Summary

6,107 from Amazon.com

6,107 Amazon.com shoppers shared a review for the Anker Astro E4. Ratings are generally positive, averaging 4.5 out of 5 stars. See all Amazon.com customer reviews.

9/10

Amazon.ca Reviews Summary

802 from Amazon.ca

802 Amazon.ca shoppers shared a review for the Anker Astro E4. Ratings are generally positive, averaging 4.7 out of 5 stars. See all Amazon.ca customer reviews.

9.4/10

Amazon.co.uk Reviews Summary

3,025 from Amazon.co.uk

3,025 Amazon.co.uk shoppers shared a review for the Anker Astro E4. Ratings are generally positive, averaging 4.7 out of 5 stars. See all Amazon.co.uk customer reviews.

9.4/10

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