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  • EC Technology® 18000mAh Ultra Slim (12mm thin) Dual-Port Power Bank Aluminum Alloy External Battery Charger for iPhone 6 6 Plus 5S 5C 5 4S 4, iPad Air, mini, Galaxy S5 S4 S3, Note 4 3, Nexus, HTC One, most other Phones and Tablets-Black
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EC Technology® 18000mAh Ultra Slim (12mm thin) Dual-Port Power Bank Aluminum Alloy External Battery Charger for iPhone 6 6 Plus 5S 5C 5 4S 4, iPad Air, mini, Galaxy S5 S4 S3, Note 4 3, Nexus, HTC One, most other Phones and Tablets-Black

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Price: $69.99
Sale: $32.99 & FREE Shipping on orders over $35. Details
You Save: $37.00 (53%)
In Stock.
Sold by EC Technology US Store and Fulfilled by Amazon. Gift-wrap available.
18000mAh-Black
  • Ultra slim(12mm thin) size makes it easy to carry and fits easily into handbag. Sleek, compact design, sturdy aluminum body withstands scratches and bumps, ensures usage for years to come.
  • 18000mAh capacity with high efficiency rate enable it to charge an iPhone 4s 10 times, a large capacity phone like Glaxy S4 5 times, or an iPad mini 3 times.
  • Dual USB (2.1A + 1.0A) for charging 2 devices simultaneously. There are 3 LED modes: SOS mode, power status mode, highlight mode.
  • Constructed with A+ Li-Polymer battery cells and build-in microchips to ensure safety use and long lifespan.
  • Package contents: EC Technology 18000mAh External Battery, 1 Micro USB charging cable, User manual
$32.99 & FREE Shipping on orders over $35. Details In Stock. Sold by EC Technology US Store and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

EC Technology® 18000mAh Ultra Slim (12mm thin) Dual-Port Power Bank Aluminum Alloy External Battery Charger for iPhone 6 6 Plus 5S 5C 5 4S 4, iPad Air, mini, Galaxy S5 S4 S3, Note 4 3, Nexus, HTC One, most other Phones and Tablets-Black + EC Technology® 2nd Gen Deluxe 22400mAh Ultra High Capacity 3 USB Output External Battery With 3-modes LED Flashlight Portable Power Bank Charger For iPhone 6 Plus 5S 5C 5 4S 4, iPad Air, iPad mini, Galaxy S5 S4 S3, Note 4 3, Nexus, HTC One, Most other Phones and Tablets - Black & Red
Price for both: $71.98

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Size: 18000mAh-Black
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Technical Details

Size: 18000mAh-Black
  • Size (LWH): 6.65 inches, 4.72 inches, 0.47 inches
  • Weight: 1.17 pounds
  See more technical details

Product Description

Size: 18000mAh-Black

Ultra Slim Aluminum Body
Just 12mm thin, the thinnest high capacity power bank in the world. The pad design makes it easily put into your handbag.
Slim and stylish aluminum body ensures efficient heat dissipation, lighter weight, and ensures usage for years to come.

Effective
A+ Li-pollymer Lithium-ion battery: After 24 months, still over 70% of total capacity.
18000mAh capacity with high efficiency rate enable it to charge an iPhone 4s 10 times, a large capacity phone like Glaxy S4 5 times, or an iPad mini 3 times.

Widely Compatible
All Dual USB Output Ports are universal and compatible with almost any smart device with an input of DC 5V, eg. smartphones, 5V tablets, PSP, Bluetooth speakers & headphones, Google Glass, and MP3 / MP4 players.

Perfect for Safe
Certified by RoHS, CE & FCC, designed with the highest industry standards for safety.
Supports over-charged, over-discharged, over-voltage, over-current and short-circuit protection to protect your devices.

Intelligent LED Flashlight
4 bars LED indicator light helps you easily know the charging status and battery level. Bulit-in 3 modes LED Flashlight, SOS mode, highlight mode, average light mode.

What's Included
1 x EC Technology High Capacity Ultra Slim 18000mAh Power Bank
1 x Micro USB Charging Cable
1 x User Manual

For optimal use
For simultaneous, max-speed charging of your 18000mAh power bank and other devices, check out EC Technology's new 35W 6-port usb charger or 36W 5-port smart car charger.
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

Size: 18000mAh-Black
  • Product Dimensions: 6.6 x 4.7 x 0.5 inches ; 1.2 pounds
  • Shipping Weight: 1.6 pounds (View shipping rates and policies)
  • ASIN: B00LVTUYA0
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (264 customer reviews)
  • Amazon Best Sellers Rank: #10,678 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

4.2 out of 5 stars

Most Helpful Customer Reviews

60 of 77 people found the following review helpful By NLee the Engineer HALL OF FAMETOP 50 REVIEWER on December 1, 2013
Size: 5600mAh
[Important Note on May 1, 20015]
My review below was written for the "ET Tech 5600mAh Power Bank" back in Dec 2013. Unfortunately, Amazon loves to move reviews and products around. Now my review appears under the product page for "EC Tech 18000mAh Dual-Port Power Bank". I don't like this practice either, as it creates confusion for readers. As usual, use caution when shopping on Amazon.

==== Original Review follows ====

From the outside, this EC TECHNOLOGY 5600mAh External Battery Pack looks EXACTLY the same as another power bank I have previously tested, the PowerBot PB5600. However, based on my testing, they have very different control circuits, and contain different capacity batteries inside.

I tested the capacities of both units, using the same method, with a 5-ohm power resistor as load.
- The PowerBot unit delivered an average power of 4.91W for 183 minutes. This means a total output energy of 15Wh
- The EC Tech unit delivered an average power of 5.08W for 210 minutes, which is equal to 17.8Wh
(see the "Output Power vs. Runtime" chart I uploaded to 'Customer Images section for details)

Assuming energy conversion efficiency of 80%, I can estimate the PowerBot unit's internal battery to be 5060mAh, or 10% lower than advertised. The EC Tech unit's battery is estimated to be 6000mAh, or 7% higher than advertised.

Notes on the control for this EC Tech unit:
- A short pulse on the power button turns on the USB output power
- A long press over 5 sec turns off the USB power.
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7 of 8 people found the following review helpful By Cedric on January 15, 2014
Size: 5600mAh Verified Purchase
So far this battery has meet all the requirements I expected in a portable battery source. The light is not that bright, but I did not purchase it for that option. It is good enough if you need to find something in the pitch dark or use as a book light. I found that the battery itself provides a faster charge to my Samsung phone versus the wall charger that came with the phone. I like the ability to charge different devices with the accompanying plug-in attachments.
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10 of 13 people found the following review helpful By Martin A Hogan HALL OF FAMETOP 500 REVIEWER on November 15, 2014
Size: 18000mAh-Black
There are so many external batteries on the market and many are simply too expensive, don't have enough power to supply even one recharge of a phone or tablet, are too heavy or poorly made. This ECTechnology external battery has some surprises.

At 18,000mAh of battery power, it is at the top of the power game. I have only seen one other battery at 20,000mAh and it was more expensive. This is a very fair price. Considering that it can charge your phone (I have an iPhone 4S) about ten times and a tablet (I have an iPad2) three times, before you need to recharge the device.

It also has two ports (which is now standard) with one at 5V, 1.0A and the other at 5V, 2.1A for a slightly faster charge to your device being charged. If you do charge two devices at once, a full charge will take a bit longer than if charging just one. As a nice novelty, it has 3 LED modes: SOS mode, power status mode and highlight mode. The ‘pindicator’ shows power levels in 25% increments.

The size is BIG. It is exactly 6.6” x 4.7” x 0.5” inches and weighs 1 pound-2.4 ounces. It would complement a large Android but it is not the kind of battery you can slide into a pocket. It is meant for office or briefcase use.

I always recharge when it gets below 20%. It takes about 3-4 hours to fully charge. Overnight charging is the best way. All external batteries claim more than 500 cycles of charging but that would take a few years to use up. You've have to recharge it every other day for almost three years to get to that point. This also the first external battery that advises against charging and using your device at the same time. This can evidently lessen the number of battery uses over its lifetime.
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7 of 9 people found the following review helpful By Cute Chihuahua TOP 500 REVIEWERVINE VOICE on August 17, 2014
Size: 18000mAh-Black
This battery pack measures 7 x 5 x 1/2 inches. It's large for a battery pack but it has a very high capacity. This battery pack has a capacity of 18000 mAh which is pretty impressive. In comparison my iPad 2 has a capacity of 6930 mAh so this battery pack will charge my iPad 2 over 2 ½ times. It's perfect for a power hungry family like mine. All four of my family members have either an iPad 2 or an iPad Mini and someone always needs to recharge. This battery pack is awesome for road trips and will supply us enough power to last even through an all day long road trip.

This battery pack is very nice looking black case that is very strong. It is very solid and as hard as a rock. It seems to be built really well. It has two USB ports on the front. One of them is higher powered 2.1 Amp and the other one is 1.0 Amp. The higher powered port is best for charging larger devices like an iPad and the smaller port is best for smaller things like a cell phone. It comes with a micro USB cable for charging it. It also comes with several other adapters including a 30 pin connector. It also has four LED lights on the front that tell you how much charge is left in the battery.

Overall I am pretty impressed with this battery pack. The only down side is its very large size. However there are a lot more good things about this battery pack than bad things and I am very happy with it.

Sample provided for review.
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Size: 18000mAh-Black
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