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Patented dodocool Portable Power Bank External Backup Battery Charger 12000mAh

Patented dodocool Portable Power Bank External Backup Battery Charger 12000mAh

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dodocool
Samsung Li-Polymer Battery     Dual USB Output

Portable Power Bank
12000mAh
Capacity of Battery
1440mAh
2300mAh
3200mAh
2600mAh
2300mAh
Cellphone
iPhone 5S
LG Nexus 5
Galaxy Note 3
Galaxy S4
HTC One
Charging Times
Five times + 65%
Three times + 55%
Two times + 55%
Three times + 15%
Three times + 55%
Compatible with popular smartphones and tablets, 
such as Samsung, iPhone, HTC, etc.
12000mAh of Capacity
You can charge two devices with 
this power bank simultaneously.
Dual USB Output
(1A / 2.1A)
Full Protection
Full protection against over-charge 
/ over-discharge / over-current 
/ over-voltage / short-circuit, etc.
Four Blue LED Lights indicate the 
charging state and power level
25%
50%
75%
100%
Power Level Indication
Equipped with one USB cable, 
supporting data transmission
Accessories
Capacity: 12000mAh
Output: DC 5V 1A / 2.1A
Input: DC 5V 1A
Working temperature: -10~40℃ 
Material of shell: ABS
Charging time: Around 13 hours
Specifications

Features:
Capacity of 12000mAh, compatible with popular smartphones and tablets, such as Samsung, iPhone, HTC, etc. 
Dual USB output for charging two devices simultaneously.
Full protection against over-charge / over-discharge / over-current / over-voltage / short-circuit, etc.
Four Blue LED Lights indicate the charging state and power level (four lights on for full power and one for low).
Equipped with one USB cable, supporting data transmission.
Long lifespan: circle time is more than 500.

Note:
1. If you want to charge your iPhone with this power bank, you need an adapter, excluded in the package.
2. While you charge the power bank, please do not forget to press the power button first.

Specifications:
Brand: dodocool
Color: Black
Battery type: Samsung Li-Polymer battery
Capacity: 12000mAh
Output: DC 5V 1A / 2.1A
Input: DC 5V 1A
Working temperature: -10~40 Celsius degree
Material of shell: ABS
Interface of battery: 2 * USB 2.0, 1 * Micro USB
Charging time: Around 13 hours
Battery size: 15.3 * 7.4 * 1.5cm / 6 * 2.9 * 0.6in
Battery weight: 276g / 9.7oz
Package size: 19.6 * 9 * 2.3cm / 7.7 * 3.5 * 0.9in
Package weight: 407g / 14.4oz

Package including:
1 * 12000mAh dodocool Power Bank
1 * USB cable

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Customer Reviews

Average Rating:

4.7

based on 46 Customer Reviews

  • 5 stars
    74%
  • 4 stars
    26%
  • 3 stars
  • 2 stars
  • 1 stars

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  • By bob23

    March 8, 2017

    I bought this to replace a previous model (not this make) that no longer worked. I love that it has lights so I can see how much charge is left in it and indeed, how much it has charged when I have it plugged in. The on off switch is really good and allows me to see how much charge is in it at any time. The on off switch doesn't switch on in your handbag either (unlike my previous model). I would recommend this.

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  • By reviewify mark

    March 8, 2017

    This is a review of the 12000mAh battery, kindly provided to me for review purposes. If like me you've got a fairly recent battery guzzling phone then you'll know how annoying it can be to be out and about and running low on power. After 2 years of use my current phone, a HTC One X, only just makes it through the day on a full charge if I don't use it much, so I can appreciate the need for a product such as this. As this is an external battery you don't need to worry if you're mobile is sealed (so you can't swap the battery out) you just plug your phone (or mp3 player, camera, tablet etc) in and it starts to charge. I like the style of the battery, it looks a bit like an extra large iPhone. There are 3 connectors at the top, two for use in charging things, one to charge the battery. Depending on what you're plugging in this battery should be large enough to give you 3 - 5 full charges, with lights on the front indicating how much charge is left in the battery. The only minor downside to such a battery is the additional weight you'll be carrying around. It takes a bit of getting use to if you pop it in your jacket pocket, but it wouldn't be especially noticeable if you were to carry it round in a bag/briefcase/laptop folder. Great product for those on the go who want to ensure they don't need to rush to a wall socket to top up gadget batteries.

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  • By mr. u. anand

    March 8, 2017

    Love this product. With my battery life not so good I need to charge my phone mid way during the day. It charges really quickly and the torch is quite bright.

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  • By john slater

    March 8, 2017

    I got this product for V Festival as it's impossible to keep your smart phone charged the entire time you're there and with me running my iFestival app there I'd use my battery even more. I've owned similar devices before and always had mixed results but the Dodocool product is really good quality and sturdy which is important when lugging around in my backpack. My intention is to leave the device in my tent and charge my phone once a night and keep it on charge during the morning. Having tested the device prior to it I've found that i get just over 4 full charges and also some trickle charges (for charging while i use) so the product description of 5 full charges is certainly accurate. The device is a bit big to carry in your pocket but i never intended to carry it around at the festival with me anyway. Highly recommend for anyone spending time outdoors either camping or at a festival. Just make sure you take your charging cable as this doesn't come with them.

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  • By miss binta

    March 8, 2017

    works well. looks really nice

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  • By mark underwood

    March 8, 2017

    Just as expected

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  • By helena thornton

    March 8, 2017

    Really good item! Delivered within 4 days and works perfectly! Only down side is it takes a long time to charge the pack initially but otherwise it's great and gives a good 4 full charges to my phone. Should prove extremely useful at festivals! Great item.

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  • By steve elbrow

    March 8, 2017

    as a fairly new customer i was impressed with the portable power pack it does what it says it keeps my phone charged up if i out for long periods and it was delivered with in 24hrs i could not ask for any more very impresed

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  • By mohammed rezaul mirza

    March 8, 2017

    Perfect for when you are on the go, especially on the train as you just plug this into your phone phone and you can resume whatever you were were watching.

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  • By oliver dangubich

    March 8, 2017

    Great product!

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  • By waseem

    March 8, 2017

    Top product! Within the hour full battery charge!

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  • By mr lee weir

    March 8, 2017

    Great item for the times when my phone has nearly run out of battery. Highly recommend. Great value for money

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  • By iain whiting

    March 8, 2017

    Good product. Not so clever delivery price for it to turn up only a day before cheaper service.

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  • By j. white

    March 8, 2017

    Handy sized little unit. Torch isn't up to much however...

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  • By dave

    March 8, 2017

    Very helpfull for smartphone at the end of the day.

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  • By jan

    February 27, 2017

    I've owned the Power Bank for about a month and I'm continuously impressed by it. It's somewhat larger than my iPhone 5s (about the size of some of the largest smartphones) and considerably heavier, but matches the design aesthetic. The charge indication LEDs are innocuous like in older MacBooks. And speaking of MacBooks, the dodocool has almost twice the capacity of my Retina MacBook Pro (12000mAh vs 6330mAh). That's enough to charge whatever you need however many times you need. I charge it less than once a week and use it to top up my iPhone, Kindle Paperwhite, ecigarettes, and the occasional USB gadget. It's simply excellent. By the way, I recommend using the dodocool Apple Certified 2-in-1 Lightning 8pin+Micro USB Charge/Sync cable ( http://www.amazon.com/Certified-dodocool-Lightning-connector-Smartphones/dp/B00J3LU1FG/ref=pd_bxgy_cps_text_y ), which is equally well-designed, aesthetic, and well-made.

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  • By ali julia

    February 27, 2017

    This is a large capacity external battery. It is powered by 12000mAh Samsung Li-Polymer battery. I was able to fully charge my phone three times without recharging the battery. I tested Dodocool 12000mAh Power Bank with Nexus 5 phone, Samsung Galaxy 7.7 tablet and iPadMini. All ports worked for all three devices. The battery showed best performance for the phone (above average speed on port 1A), and slightly below average speed for the tablets on both ports. I own a number of external batteries and to compare them I run the same set on tests on each of them, so they can be compared to each other using "apples to apples" comparison. This set of tests allows me to provide unbiased comparisons between different external batteries. For those who are interested in the details of the tests I including them at the end of this review. The Dodocool battery pack is 6" long, 2.875" wide, and 0.375" thick. It weighs 9.7 oz. It has an on/off button on the side as well as automatic shut off when not in use. This battery pack has two ports labels 1A and 2A. It comes with a USB/micro USB cable. To charge iPad Mini and Galaxy Tablet I used my own charging cables. Note error in product description: Even though the Amazon description states that this battery has a built in flashlight (turned on by a long hold) the power bank does not have a flashlight. ★ How I tested this battery pack ================================== I use a USB current monitor and a charging test to test each port. The current monitor shows the voltage and the current flowing between the battery and the device. The current varies based on what the device requires and what battery provides. This communication happens using different protocols depending on the operating system. Newer Android OS versions have adapted their protocols to get better performance from ports aimed at Apple devices. An addition variable for Android devices is whether a data cable or charging cable is used to charge the device. The charging cables short the two data connections together (rendering them useless for data transfer), but this fools devices to see the cable as an AC power connection, and thus accept the higher current of the charging source. Since the charging speed is non-linear I start charging each device from approximately the same charge level. I use Battery App by Elvison to determine how each device recognized the charging source. 'AC' status means the charging is at full charging rate. 'USB' status indicates charging at a lower charging rate. 'Discharging' status means that the charging rate is below the power that the device is consuming so it slows down the discharge rate but does not re-charge. ★ Test Results: ====================== ✔ Samsung Galaxy Nexus Phone -------------------------- Port 1A: AC ----- 7% change in charge in 10 minutes Port 1A: current monitor: ~~~~~ 0.84A and 5.05V Port 2A: AC ----- 4% change in charge in 10 minutes Port 2A: current monitor: ~~~~~ 0.94A and 5.01V ✔ Samsung Galaxy 7.7 tablet -------------------------- Port 1A: AC ----- 2% change in charge in 10 minutes Port 1A: current monitor: ~~~~~ 0.94A and 4.90V Port 2A: AC ----- 1% change in charge in 10 minutes Port 2A: current monitor: ~~~~~ 0.85A and 5.18V ✔ iPadMini -------------------------- Port 1A: AC ----- 1% change in charge in 10 minutes Port 1A: current monitor: ~~~~~ 0.93A and 5.08V Port 2A: AC ----- 3% change in charge in 10 minutes Port 2A: current monitor: ~~~~~ 1.58A and 5.11V ★ Summary ------------------ This pack has a nice capacity and had best performance for Android phone on the port labelled 1A. This charger is provided by Dodocool. Ali Julia review

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  • By naman

    February 27, 2017

    Nice design. The only thing i dont like about the product is that it takes forever to charge it from 0 to 100%

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  • By francesco

    February 26, 2017

    very good fast seller good product low price...ok! ok ! ok ! ok ! ok ! ok ! ok !

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  • By jjceo

    February 26, 2017

    This battery pack is beautifully packaged with a Slim line style of case. It is a battery pack rated at 12000 mAh of capacity and capable of charging two devices simultaneously. I put together a video of the unit and the test results for your review. The battery weighs in at 9 3/4 ounces. The battery pack has two USB output ports that output 5 VDC at 1 Amp and the second one outputs 5 VDC at 2.1 Amps. This is ideal to allow you to charge two devices at the same time and one of them can be a tablet that requires 2.1 Amps to charge quickly. During the testing the temperature of the battery pack never even exceeded ambient room temperature. To start your device charging you connect it with the proper cable and press the battery pack power button and charging starts. The charging will stop automatically when your device is fully charged or the battery pack is depleted. This product is a good performer and I rated it at 5 stars. If you are a business person or a student and have to depend on your tablet or smart phone for long periods of time without the ability to get to an AC power source then this is a good battery to own. This is good for those who travel a lot or camp out. Now you can watch your movies or listen to your music on those long airline flights. You should note that I did not operate my tablets while I charged it. When I test a battery I do an extensive set of tests that fully charges the battery and then I use it to charge devices and make sure that it is fully depleted when my tests are done. I time each test and document the results as the test progresses. I then calculate the mAh of capacity that the battery supplied and I then calculate its charging efficiency. This process takes from 3 hours to, in very large batteries, about a day for testing. I don't take any short cuts or guess and every battery has these tests performed on it and documented. This is to assure that the battery is tested and it performs well. If a battery has performed poorly I then run the tests again to verify the results. Items in the box: * The Dodocool 12000 mAh battery * The battery pack comes with a very brief instruction manual * A USB to Micro USB charging cable that is 40 inches long Dodocool 12000 mAh External Battery Pack Features: * Powerful 12000 mAh capacity * The unit is compact and weighs in at 9 ¾ ounces. * Attractive design with nice slim style case * There are 4 Blue LEDs that indicate the battery charge status and each LED represents 25% of the battery's capacity. (25%, 50%, 75% and 100% of available capacity.) * When pressing the power button or charging a device the LEDs will show the amount of power still stored in the battery pack. * There are two USB power output ports and they are USB 1 rated at 5VDC at 1 Amp, USB 2 rated at 5VDC at 2.1 Amp for iPads and tablets. * The battery pack can output 3.1 Amps max at one time so it can charge two devices simultaneously. * When you plug in a device that begins the charging process of your device. There is an automatic OFF when your electronic device is charged. * The battery pack uses Lithium-Ion battery * The battery pack can be recharged 500+ times * Warranty is 12 months * The battery pack does not come with an AC wall charger. * Charging it with a USB 2.0 port on your laptop or computer is not recommended by me as the battery would take too long to fully charge. * It will take about 13 hours to charge the battery pack with a 5 VDC USB rated at 1 Amp. I recommend using a 2.1 Amp USB power source. Charging my devices: I charged the battery pack fully before I started my test. I started with an iPhone 5S at 1% - Battery pack fully charged at 4 LEDs. iPad 2 at 2% - Battery fully charged with 4 LEDs * 30 min iPad at 19% - battery 4th led flashing * 60 min iPad at 30% - battery 4th led flashing * 90 min iPad at 40% - battery 4th led flashing * 120 min iPad at 50% - battery 4th led flashing * 150 min iPad at 60% - battery 3rd led flashing * 180 min iPad at 70% - battery 3rd led flashing * 210 min iPad at 78% - battery 3rd led flashing * 240 min iPad at 86% - battery 3rd led flashing Finished charging overnight iPad 2 100% - 3 rd led flashing * 98%x6944mAh=6805.12mAh I then charged an iPad Air at 34% - battery 3rd led flashing * 30 min iPad at 48% - battery 1st led flashing * 40 min iPad at 51% - battery dead 17%x8820mAh=1499.4mAh To verify the condition of the battery pack I then charged an iPhone 5S at 36% - battery indicates that it was dead. * 10 min iPhone at 40% battery is now really dead. * 4%x1560mAh=62.4mAh Summary of charging tests: * 6805.12+1499.4+62.4=8366.92/12,000=69.72% efficiency Here are some common devices and the amount of mAh of capacity they have when they are fully charged. This is just to give you an impression of how much energy it takes to charge your smart device: * iPhone 4 battery 1,420 mAh battery capacity * iPhone 4S battery 1,432 mAh battery capacity * iPhone 5S battery 1,560 mAh capacity * iPad 2 battery 6,944 mAh battery capacity * iPad 3 battery 11,560 mAh battery capacity * Kindle Fire battery 4400 mAh capacity * Kindle Keyboard battery 1750 mAh capacity * iPhone 5 is 3.8 VDC at 5.45 Wh = 1434 mAh battery * iPad 4 battery is 11,486 mAh 3.7 VDC at 42.5 Wh * iPad Air battery 8820 mAh capacity * iPad Mini battery is 4490 mAh at 3.72 VDC 16.7 Wh When using an external battery you have to allow approximately 30 % of the battery capacity will be lost to heat, voltage conversion, powering the batteries electronics and the electronics of your electronics device's charging circuits. In addition you have to consider that your device is not truly off like a cell phone is still connected to the WIFI and phone networks and probably receiving emails, etc. Real world examples of charging capability with this battery pack: * iPhone 4 or 5 approximately 5.89 full charges out of a fully charged Dodocool 12000 mAh battery pack * iPhone 5 or 5S approximately 5.36 full charges out of a fully charged Dodocool 12000 mAh battery pack * iPad 2 approximately 120.5% of a full charge * iPad 3 or 4 approximately 72.4% of a full charge * iPad Mini approximately 186% of a full charge * Kindle Fire approximately 190% of a full charge * iPad Air Approximately 95% of a full charge * A normal estimated usable storage is 70% of capacity or .70 * 12000 mAh = 8400 mAh charging capacity available for your electronic devices. * In my testing I was able to use approximately 8366.92 mAh of capacity or roughly 69.72% of the 12000 mAh capacity. I rated this product at 5 stars based on its 69.72% efficiency. I received a sample product for evaluation and I promised to provide a fair and honest review.

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