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Anker 2nd-Gen Astro E5 High-Capacity 16750mAh 3A Portable External Battery Charger with PowerIQ for iPhone iPad Samsung and More

4.7 out of 5 stars 3,803 customer reviews
| 382 answered questions

Price: $89.99
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In Stock.
  • The Anker Advantage: Join the 10 million+ powered by our leading technology.
  • Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge up to 3A.
  • Ultra-High Capacity: Charges the iPhone 6s six times, the iPhone 6s Plus or Galaxy S7 four times or the iPad Air more than once. Safely recharges with a 2A-or-higher output charger (most phone chargers have only 1A).
  • Superior Quality: Premium Panasonic 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 E5 External Battery, Micro USB cable, travel pouch, welcome guide, our worry-free 18-month warranty and friendly customer service.

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$32.99 & FREE Shipping on orders over $49. Details In Stock. Sold by AnkerDirect and Fulfilled by Amazon.

Frequently Bought Together

  • Anker 2nd-Gen Astro E5 High-Capacity 16750mAh 3A Portable External Battery Charger with PowerIQ for iPhone iPad Samsung and More
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Total price: $51.97
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Product Features

  • Size (LWH): 5.91 inches, 2.44 inches, 0.91 inches
  • Weight: 10.88 ounces
  See more technical details

Product Description

2nd-Generation Astro E5
A power plant for your palm or pocket.

From ANKER, America's Leading USB Charging Brand
• Faster and safer charging with our leading technology
• 10 million+ happy users and counting.

PowerIQ
Exclusive to Anker. Intelligent high-speed charging for all your devices.

Ultra-High Capacity
Enough power to keep you going for days. Charge an iPhone 6s over seven times, a Galaxy S7 four times or an iPad Air more than once.

Our Most Compact Yet
Using ultra-high-density cells, we've packed in 25% more power than the same-sized Astro E4 to produce our most compact battery yet.

Superior Quality
To ensure complete safety, we use only premium Sanyo battery cells, together with the most advanced materials and cutting-edge technology.

Worry-Free Warranty
At Anker, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support.

For Optimal Use:
• Use the included cable, your original cable or one certified by a third party (such as MFi).
• Compatible with Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices except for the LG G2/G4, iPod nano, iPod Classic, HP TouchPad, Asus tablets and some GPS and Bluetooth devices.
• Remove film before use.
•To give your Astro E5 the fastest, safest recharge, use an Anker USB charger. Using an ordinary phone charger may cause overheating.

Product Information

Product Dimensions 5.9 x 2.4 x 0.9 inches
Item Weight 10.9 ounces
Shipping Weight 1.1 pounds (View shipping rates and policies)
ASIN B00N2T7U90
Item model number A1208H11
Customer Reviews
4.7 out of 5 stars 3,803 customer reviews

4.7 out of 5 stars
Best Sellers Rank #177 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
#16 in Electronics > Portable Audio & Video > MP3 & MP4 Players & Accessories > MP3 & MP4 Player Accessories > Batteries & Battery Packs
#16 in Cell Phones & Accessories > Cell Phone Accessories > Batteries & Battery Packs > Portable Power Banks
#176 in Electronics > Cell Phones & Accessories

Technical Specification

Warranty [pdf ]

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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From the Manufacturer

Power Astro 6400mAh E4 13000mAh E5 16000mAh E6 20800mAh E7 25600mAh
PowerCore+ Mini External Battery 2nd Gen Astro External Battery 2nd Gen Astro E4 External Battery 2nd Gen Astro E5 External Battery 2nd Gen Astro E6 External Battery 2nd Gen Astro E7 External Battery
Color Selection Black, Silver, Pink, Blue, Gold Black, White, Blue, Green Black, White Black, White Black, White Black, White
Battery Capacity 3350 mAh 6400 mAh 13000 mAh 16750 mAh 20800 mAh 26800 mAh
# of iPhone 6 charges 1.2 2.5 5.0 6.2 8.8 10.0
# of iPad Air charges 0.3 0.5 1.0 1.3 1.8 2.0
# of USB Charging Ports 1 1 2 2 3 3
PowerIQ Technology
Max Charging Speed 1 Amp 2 Amps 3 Amps 3 Amps 4 Amps 4 Amps
Size 3.5 × 0.9 × 0.9 inches (lipstick) 3.7 x 1.8 x 1.0 inches (candybar) 5.9 × 2.5 × 0.9 inches (glasses case) 5.9 × 2.5 × 0.9 inches (glasses case) 6.5 × 3.1 × 0.9 inches (Galaxy Note 4) 6.5 × 3.1 × 0.9 inches (Galaxy Note 4)
Weight 2.7 ounces (egg) 4.8 ounces (baseball) 10.4 ounces (iPad mini) 10.4 ounces (iPad mini) 15.8 ounces (football) 15.8 ounces (football)

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
Enjoying this new higher capacity pack from my old Anker® Astro 5600mAh.

Pack does get warm/hot when charging an iPhone6 and iPad mini simultaneously. According to the Jelly Comb Universal USB Power Multi-meter it restored 15221mAH capacity. Impressive!

One thing to note about recharging this thing- it will start off restoring capacity quickly (5v @2A) but as it gets past 8000mAH the charge rate slows down significantly. At 11000 it would only accept at .30A (this was after about 7 hours) which means the first 1/2 or so accepted capacity quickly, but the latter half took much longer.

Tested with the Globe Electric 7791301 6 Outlet 2 USB Surge Protected Wall Space Plug and factory Apple iPad charger to verify that the battery had slowed its draw down.

Overall happy with this battery pack. The sweet spot as far as time/efficiency goes is to use it to 10% and recharge to 70-80%. To recharge the last 20-30%, it takes much longer and only makes sense if you have the time to charge for that long or absolutely need the full capacity.
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Verified Purchase
First of all I'll preface this with the fact that I don't often write reviews. It's not my style, I leave that to other people.

Now with that out of the way let me say that like most people who run a "smart" device life, I found myself needing more juice on a daily basis. I had researched plenty of battery packs in an attempt to get the most out of my hard earned cash.

When I came across this particular battery pack I picked it up after researching and reading all the previous reviews. My experience with it initially wasn't very satisfying. I charged it as per instructions yet when I went to use it, I found that it barely charged my iPhone 6+ to 40% before completely dying.

I was going to just send it back to Amazon for a refund but instead I decided to contact the manufacturer by replying to their email regarding my purchase. I emailed them at 8pm and when I woke the next day I saw that they had emailed me around 4:30am.

Long story short they helped me trouble shoot the issue I was having. They asked how I had charged it and said that the charger should be at least a 1.5A charger. I was using my iPhone charger (white cube). I tried again with a 2A charger and it's worked amazingly since then.

I'm extremely satisfied with the battery pack and highly recommend it.

Also the fact that their customer service was so quick and accommodating was very refreshing.

Don't hesitate to pick it up. I already have 3 friends who are going to pick one up.
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Verified Purchase
So... i fully charge my nexus 5 3 times and 1 time an iphone 5s (let's say 8k mah in rough numbers) with the first charge of this baby and it still had juice before i decided to charge it. Have to say it looks nice, the carry bag is nice too and is not so big/heavy considering the 16k mah that claims to have. The LED is just that, 1 LED, you don't need more than that. The power button and the charge ports are all well located, where you expected to be, real easy not rocket science here.

Is very useful if you punish your devices all day long, you wont regret it. Besides, anything more than this size is not so handy (imo). I'm still testing the charging times and how much juice i get, i'll review this later.

However the only issue that i see is that the supplied usb/microusb cable seems to take notoriously more time than using my nexus5 cable. I'll try different cables to make a fully review

There are tons of external batteries out there but for now, i am really satisfied with this one.
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By Brian on January 7, 2015
Verified Purchase
Oh Anker.
Let me count the ways. Although you fuel my addiction in which I think I need an intervention, you keep my gadgets going all day long. I first came into contact with Anker back when I had a Galaxy S3 phone and bought an "el cheapo"extended battery. Had I known my original purchase was the start of a beautiful yet enabling relationship I would have bought stock! Last year I purchased their Anker 13000mAh battery pack and it's still kicking. Still charging my Android phones, my iPhones, and my tablets. Recently I bought my fiance her first Anker product so she's able to carry her charger in her purse and never be in a situation where she's without battery (and it's pink, so thats a plus).

Anyway, I'm a sucker for new gadgets and just picked up two brand new battery packs for myself. I bought the Anker (2nd gen) Astro E5 and (2nd gen) Astro E1. These things are GREAT and the E5 packs 3,000mAh more than my first. The sizes are excellent and easy to throw in a bag, or even a coat. They charge your devices and they're high quality. I really don't know what else to tell you. The E5 is about as long as my iPhone 6 Plus, 3/4s as wide and twice as tall (with two Apple leather cases)

Now Anker, a private message. Please, oh PLEASE loose the glossy, messy finish. These things attract finger prints and dirt smudges like crazy. Crazy enough that after i've used it a few times it looks like my toddler has been playing with it while eating dinner. They also scratch very easily. While not affecting overall usage, I just like my things to look as nice as they work.

Anker, You keep updating and upgrading and i'll keep being a customer.

(Pictures in image: Original 13,000mAh, Astro E5 (2nd gen), Astro E1 (2nd gen)
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