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TeckNet® iEP392 12000mAH Heavy Duty 2.1A/1A Dual USB Ports External Battery Pack for the new iPad 3, new iPad mini, iPad2, iPhone 5, iPhone 4S/4/3Gs/3G, iPod Touch all versions; Samsung Galaxy Note/Nexus/S3/S2/S; HTC Titan, Sensation, ONE S/V/X, EVO Thunderbolt, Desire; LG Optimus series; Blackberry Bold, Curve, Torch; Motorola Razr HD/MAXX & Bionic, Atrix/2; Nokia Lumia 700/800/900 and GoPro (iEP392 Heavy Duty 5V/2.1A/1A high speed charger)

by TeckNet
4.6 out of 5 stars  See all reviews (157 customer reviews)
Price: £25.99 & FREE Delivery in the UK. Details
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In stock.
Sold by BlueByte Ltd and Fulfilled by Amazon. Gift-wrap available.
Want it tomorrow, 25 April? Choose Express delivery at checkout. Details
  • 12000mAh Advanced Li-Polymer Battery Technology, 43 hours movie time for iPhone 4/4S and 11 hours movie time for 3G iPad
  • Heavy Duty Dual Port USB Outputs: 5V 1A and 5V 2.1A, high speed charger, can charge two devices at the same time (Only one USB Charging cable included)
  • 4 Integrated LED Power status indicator lets you know how much power is left, Turns off automatically When not used
  • With built-in safety circuit and heat-resistant design, Ultra light weight 300g, Dimensions: 108*105*23mm
  • Come with UK Power adaptor and a 7 set of changeable connectors, so you can power and recharge your for most Smart Phones such as HTC, Apple, Samsung, LG plus, any iPad, tablet, MP3 Plays or camera.
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Frequently Bought Together

TeckNet® iEP392 12000mAH Heavy Duty 2.1A/1A Dual USB Ports External Battery Pack for the new iPad 3, new iPad mini, iPad2, iPhone 5, iPhone 4S/4/3Gs/3G, iPod Touch all versions; Samsung Galaxy Note/Nexus/S3/S2/S; HTC Titan, Sensation, ONE S/V/X, EVO Thunderbolt, Desire; LG Optimus series; Blackberry Bold, Curve, Torch; Motorola Razr HD/MAXX & Bionic, Atrix/2; Nokia Lumia 700/800/900 and GoPro (iEP392 Heavy Duty 5V/2.1A/1A high speed charger) + 10 in 1 Universal USB Charger Cable For iPod / iPhone / PSP / Camera / Nokia / HTC / LG / Samsung / BlackBerry
Price For Both: £27.24

These items are dispatched from and sold by different sellers.

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Product details

  • Product Dimensions: 10.8 x 2.3 x 10.5 cm ; 299 g
  • Boxed-product Weight: 998 g
  • ASIN: B000X30AYA
  • Date first available at Amazon.co.uk: 12 Nov 2008
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (157 customer reviews)
  • Amazon Bestsellers Rank: 10,687 in Electronics (See Top 100 in Electronics)

Product Description

TeckNet iEP392 USB Mobile Charger for the extra energy boost on the way

Small,compact lithium-polymer battery,the mobile devices can go give a second life

Nothing is more annoying,as noted at the end of the day that the phone does not work because the battery is empty,or to photograph a wonderful motive cannot,because the USB camera is not charged for too long. TeckNet iEP392 Power Bank are here to supply quick charging for USB-chargeable devices such as cameras,smart phones, tablets,headsets,and much more

TeckNet Power Bank has lithium-polymer batteries,guarantee many charge cycles and long energy storage. After six months they have no use for example,still well over 60% of their original charge.After completing a charge cycle off the Power Bank off automatically to conserve the internal battery and avoid wasting unnecessary energy. Integrated fuses prevent overcharging the battery or deflagration
-After 6 months,still over 60% of total capacity
-Turns off automatically
-Security:Integrated fuses and thermal protection design
-2 USB Output

Specs:
-Capacity:12000mAh
-Type:Lithium-polymer
-Life Cycle: 500

Battery Life Extension on Apple products:
-120% of the iPad 2 battery life
-43 hours iPhone 4 Movie Time

Compatibility:
-Apple:All iPad/All iPhone/iPod Touch/Nano/others
-Compatible with Many mobile phones,HTC,Samsung,BlackBerry,Motorola,Nokia,LG, Sony Ericsson ...
-Other tablet,NDS,MP4, MP3....
Incompatibility:
Not work with the device require USB DCP specification like Blackberry 9700,Samsung Galaxy Tablets,Nokia N900...

Box contains:
- 1 Battery Pack, 1 USB cable, 7 Connectors, 1 Bag, 1 Manual



Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews
62 of 66 people found the following review helpful
4.0 out of 5 stars Very good, but doesn't deliver 12,000mAh 31 Jan 2012
Verified Purchase
This is, certainly, an amazing piece of kit. The amount of power it packs into a sleek case that will fit in the back pocket of your jeans is truly impressive, and for the price (under 35 pounds at time of writing) it's an absolute bargain.

However, I do have one niggle: It wont provide 12,000mAh.

Now, I have to say that I'm using this for a totally unsupported purpose; namely, to run a set of LED bike lights. Two sets, actually. The stock battery that came with each was a 6V / 2,400mAh unit of nearly the same size and weight as this TeckNet unit, so this will run twice as many lights for far longer without a weight penalty. Happily the 6V lights work perfectly on 5V or 5.5V, so a minor adaptation of a USB cable and hey presto, one of the best bike light batteries you could wish for.

This in turn led me to my findings about its usable capacity. The lights draw about 550mA according to my multimeter. A quick bit of maths should tell you then that a 12,000mAh battery should run the lights for about 22 hours between charges. In fact, the run time is about 14 hours (yes, I know, still longer than any night ride!), meaning about 7,700mAh of usable capacity.

I questioned this with the seller and very promptly they replied and reminded me about the inefficiencies of charging batteries; when you charge a battery it gets warm as, while most of the power charges the battery, 30-40% will be lost as heat. Which is fine, except, (a) I wasn't charging a battery, and (b) I was measuring the current flow from the battery to the load. What it did when it got to the load, I have no care (and neither does it), the point is that the battery put out 550mA for 14 hours before it became sufficiently discharged to turn itself off.
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17 of 18 people found the following review helpful
5.0 out of 5 stars The product works great with my ipad 18 Jun 2011
I ordered this TeckNet iEP390 battery pack a few days ago and I have to say it's a great travel tool! I have an iPad and I tried a couple of other battery packs but they all failed to properly charge it. None of the other batteries could provide enough power to the iPad and it would charge way too slowly. With the TeckNet iEP390 it charges really fast! I think it might charge even faster than from the wall outlet. Also, none of the others had even close to the same 11000mah capacity for the price. You definitely need the extra juice to charge a tablet. For phones, I was able to charge my iPhone several times over.

It comes with several tips so you can charge just about anything. My brother has the Galaxy tab and he said he had the same problem of other batteries not working. I used the included galaxy tab tip and his charged perfectly.

The size is not bad either. It's a bit heavy, but only a bit bulkier than an iPhone. People always ask me what it is since it looks so shiny.

I would highly recommend for anyone who needs power while traveling. Good to charge anything I could throw at it.
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5 of 5 people found the following review helpful
5.0 out of 5 stars TeckNet iEP392 Li-Ion battery bank 3 May 2012
Verified Purchase
I bought this battery bank for £33.98 on 31.Dec.2011, having decided to treat myself to a second model in addition to a Sanyo Eneloop KBC-L2B. I had bought the Sanyo for their excellent reputation in batteries; I opted for the TeckNet iEP392 for the lower price after reading favourable reviews on Amazon.

The battery bank arrived on 25.Jan.2012, slightly ahead of Amazon's estimate. A nice surprise - it looks better in reality than on the picture, made of black glossy plastic with a curved silver trim at one side of the top. Under the silver trim (which turned out to be semi-transparent) are four blue LED lights to indicate the level of remaining charge.

The iEP392 feels solid and well built. It is chunky and would be an overkill to carry around in your backpack in the city, but would be very useful for trips to regions without electricity, long flights with your iPad, or simply to be able to charge several USB-powered devices while traveling. It can charge two at a time.

The battery came in a fairly large box that contained also a UK mains charger, several different connectors and a nice cloth pouch. It was about 75% charged (three out of four indicators lit), so I topped it up to 100% before use. Then used it to charge my Blackberry twice over a week. Still four indicators lit! This thing appears to have some serious capacity, as it claims.

Three months later, it has been to Morocco and back, but apart from that I have not used it heavily. After 4 charges of a Blackberry or an iPhone the remaining capacity was over 50%, so in theory it should manage about 8-10 charges of a smartphone.

I haven't done a proper test of the capacity, but came across another reviewer's comment that he measured it at 7700mAh.
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5 of 5 people found the following review helpful
3.0 out of 5 stars iep392 22 April 2012
Verified Purchase
I purchased the unit two weeks ago and noticed that the port markings were upside down making the tablet and phone ports opposite to what they should be. After many emails to TeckNet I was told that the whole batch was wrongly marked but the battery was functional regardless. I decided to keep the battery as to return it was at my expense.
The battery, I found, delivers about 70 percent charge for the new iPad so not bad. I have had many purchases from TeckNet and always found them good quality, time will tell on this battery.
Make sure the price quoted is what you pay.
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Most Recent Customer Reviews
5.0 out of 5 stars Can't go wrong
Brilliant, can charge off it all week. Didn't use for months at one point, then started using again and it still charged my devices for another week straight off without an... Read more
Published 24 days ago by James Dickson
3.0 out of 5 stars Seems fairly good, but not fully compatible with Nokia 6301
I bought this to power a Raspberry Pi and Nokia 6301 as they are used together in an embedded project. Read more
Published 1 month ago by Mr. A. J. C. English
5.0 out of 5 stars buy it :)
good value. works fine and came in with a good protective packaging. although a bit bigger than i expected but not as bulky as to bug me, (Y).
Published 3 months ago by Haslina Hanif
5.0 out of 5 stars Very good supplementary battery
This battery does well for charging both your iphone and ipad. I have found it works well, with a good charge life . Read more
Published 4 months ago by J
5.0 out of 5 stars Good value and works well
A few weeks back I lost one of these on a day out, and immediately came back to buy the same again. I had it's predecessor for around a year and it is very useful on camping trips,... Read more
Published 6 months ago by MacGyver
5.0 out of 5 stars Tecknet External Battery Pack
Bought for charging IPAD and IPHONE when on holiday as most hotels have the power linked into your room keycard and wanted to have some form of back up charger. Read more
Published 7 months ago by Tommy Campbell
5.0 out of 5 stars The best
Highly recommended. No negatives. With all the new gadgets around, it is a must have product. Worked with all tested products.
Published 7 months ago by WAK
5.0 out of 5 stars Great Piece of Kit, Outsatnding Value
I had been looking for a power pack which would allow me to recharge the iPhone when Ive been using it as a GPS during walks. Read more
Published 7 months ago by Alan Gent
4.0 out of 5 stars Festival Life Saver
Purchased this product specifically for charging my partner and I's smart phones during a festival. Last year a charging tent cost £5 and a day without my phone to charge it so... Read more
Published 7 months ago by M. D. Davies
1.0 out of 5 stars Fail
This charged up twice: once for testing before we went away to make sure it worked; once before we went away. It charged my phone once and then died. Read more
Published 8 months ago by Amazon Customer
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