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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


Price: $69.99
Sale: $39.99 & FREE Shipping. Details
You Save: $30.00 (43%)
In Stock.
Sold by EC Technology US Store and Fulfilled by Amazon. Gift-wrap available.
18000mAh-Black
  • Aviation Aluminum body design to ensure durability. Ultra slim size makes it easy to carry and fits easily into handle bag.
  • Constructed with A+ Li-Polymer battery cells and build-in microchips to ensure safety use and long lifespan.
  • 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.
  • 4 LED indicators reveal the battery level,Dual USB (1.0A + 2.1A) for charging 2 devices simultaneously.The light has 3 modes: bright/average/SOS.
  • Package contents: EC Technology 18000mAh External Battery,1 Micro USB charging cable, user manual.
2 new from $39.99
$39.99 & FREE Shipping. 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® 22400mAh Ultra High Capacity Dual-Port External Battery With LED Flashlight Portable USB Charger Ultra Compact Power Bank Broad Compatibility 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-Blue&White
Price for both: $85.98

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Size: 18000mAh-Black

Technical Details

Size: 18000mAh-Black
  • Size (LWH): 6.65 inches, 4.72 inches, 0.47 inches
  • Weight: 0.16 ounces
  See more technical details

Product Details

Size Name: 18000mAh-Black
  • Product Dimensions: 6.6 x 4.7 x 0.5 inches ; 0.2 ounces
  • Shipping Weight: 1.6 pounds (View shipping rates and policies)
  • ASIN: B00LVTUYA0
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (117 customer reviews)
  • Amazon Best Sellers Rank: #42,029 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
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Product Description

Size: 18000mAh-Black

THE SPECIAL POWER BANK LEAD TO SPECIAL LIFE

Slim & Sleek

Ultra Slim Design: Easy to carry, Just 0.47 inch thin, one of the thinnest power bank in the world.


High 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.


Stability and Safety

Constructed with A+ Li-Polymer battery cells and build-in microchips to ensure safety use and long lifespan.


Customer Questions & Answers

Customer Reviews

Works well keep my phone charge all day.
Ewilliams2099
Extremely useful when traveling and really any other situation when have no access to an electrical outlet and have to have your phone (or other device) handy.
Kats
This device can charge my phone up to 2 times from 20%.
Finn and Dex

Most Helpful Customer Reviews

33 of 38 people found the following review helpful By NLee the Engineer HALL OF FAMETOP 50 REVIEWER on December 1, 2013
Size Name: 5600mAh
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. The unit will auto-off after 1 minute if no load is detected.
- Two short pulses turn on the LED flashlight. It is relatively dim and only good for short distance illumination.
- Another two short pulses turn off the LED flashlight.

The EC Tech unit's battery status indicator is highly non-linear. Each LED 'ring' does not represent 20 or 25% of charge.
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2 of 2 people found the following review helpful By Evan on September 26, 2014
Size Name: 18000mAh-Black Leather Cover
Length: 6:03 Mins
EC Technology's 18,000 delivers good charging capacity as well as slick design. The leather wrapping breaks from the metal housing that most battery packs feature and instead uses a leather material that is not only soft, but also stylish. It provides a good surface to set your device right on the charger while it is charging. The size is convenient featuring a thin style instead of a blocky style. The leather is also nice in the winter time when touching metal is extremely cold and the last thing you want to carry around is a metal battery pack. The LED light features different modes (dim, bright and S.0.S. flashing) which is the first time I have seen this in battery packs.

It provided me with pretty good charging speed and capacity-wise it was slightly better than my 15,000 mAh battery packs, providing about one extra charge. Overall, it is a good solid charger with good speed. Definitely a top of the line product compared to others in it's range.
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2 of 2 people found the following review helpful By Cedric on January 15, 2014
Size Name: 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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2 of 2 people found the following review helpful By maust on October 22, 2013
Size Name: 5600mAh Verified Purchase
Great buy will charge your phone tablet N even has a flashlight. recharges in no time. hasn't given any problems
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1 of 1 people found the following review helpful By Mike Tarrani HALL OF FAMETOP 10 REVIEWER on September 24, 2014
Size Name: 18000mAh-Brown Leather Cover
Note: I am not going to rehash the product specs and description, so please read those carefully. My review will focus on my actual use and some additional information regarding some of the specs.

This battery is large, slim and one of the high capacity models that is perfect for tablet users. Of course, it's also perfect for road warriors who spend a lot of their time on layovers in airports (and searching for power outlets to stay connected.) For those folks the dual ports will keep a phone and tablet going for a multiple layover international trip.

Before proceeding I need to disclose that I received this as a review sample and also while it's true capacity is 18000mAh, you can realistically expect only 12600mAh of usable backup. That's because like all batteries based on Li-polymer technology loses thirty percent (or slightly more) in heat and conversion (about 16%) and from the cable itself (approximately 14%). Even at the usable level this is still almost twice the capacity of my Samsung Tab 3 10.1 which gives me about 8 hours of use without this pack and close to 21 hours with it attached. I did not test this with both a tablet and phone to determine the actual total use, but I did see about a 1% charging rate per three and a half minutes on my Note 3 phone from the 1.0 Amp port. That comes to a little over 94mAh per minute charging rate from that port. I did not test the 2.1 Amp port's charging rate.

This battery has an array of four LEDs that show remaining power. They indicate in 25% increments and I charged this battery up from two LEDs (between 26 and 50 percent), which took about eight and a half hours.
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