DX  » Community » Reviews » Portable Dual USB "20000mAh" External Battery Power Bank w/ Adapter for GALAXY S4 / i9500 + More
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  • 5 Star:6724 (67%)
  • 4 Star:2810 (28%)
  • 3 Star:31 (3%)
  • 2 Star:00 (0%)
  • 1 Star:31 (3%)

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97% of customers would recommend this product to a friend.

    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    It does what it should do

    posted by AdrianBurla on 04/25/2014 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week

    Pros:
    Compact high capacity rechargeable battery that can be used with a wide range of devices that use 5V input power supply. IT should charge a mobile phone several times.
    Cons:
    The "20000mAh" in the name is misleading as the real capacity is lower,but this is disclosed in the description. The ...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Never ending but heavy backup battery

    posted by kobiweis on 04/20/2014 Certified Owner

    Involvement:General (knows how to use it) - Ownership:more than 1 month

    Pros:
    Battery lasts for ever, you can charge at least a couple smartphone and still have backup.
    Cons:
    Very heavy. Not really suitable for daily use. It would be nice if you could charge the battery with a micro usb and not a min ...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Power on the go, where ever you go.

    posted by Eridanos on 04/05/2014 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week

    Pros:
    Nice design, and feels quite sturdy. Both power out ports are well labelled. Power in port is mini USB. Has a check button to check the remaining power in the bank. Very cheap compared to electronic shops over here.
    Cons:
    On the heavy and large side, but I suppose it is loaded with Li-on batteries. It is nearly 1.5 times the size of my other bank.
    View Detail » 
    • Overall Rating: 4
    • Price: 4
    • Quality: 2
    • Ease Of Use: 5
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Well built, but problems with charging current

    posted by lucianor85 on 03/28/2014 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    Looks good, easy to use and to charge (doesn't come with power outlet adapter), must connet to previously owned one or at a usb outlet, through a micro-usb cable (provided). Offers several options of device connectors, exception for the lightning apple dev...
    Cons:
    Actual current/amperage output options are lower than reported. Device claims to have 20000mAh, 17600 useful (~90% productivit...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Best value, crazy power.

    posted by jayratch on 02/09/2014 Certified Owner

    Involvement:General (knows how to use it) - Ownership:more than 1 month

    Pros:
    This thing holds a ton of power. I can charge my iPhone multiple times before the device needs charging. And it accepts a trickle charge; I used this in the woods with a GoalZero Nomad solar panel.
    Cons:
    The indicator lights are not reliable. It will read 4 dots for weeks and then suddenly read nothing. I've had it unexpectedly...
    View Detail » 
    • Overall Rating: 5
    • Price: 4
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Great backup

    posted by Timofruytier on 01/18/2014 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    The power back works great for my Iphone 4, I can charge multiple times and you can charge at the same time with a friend!
    Cons:
    There was no charger for the power bank included. I had to use my own charger. Also the included cables are not from a high qua...
    View Detail » 
    • Overall Rating: 5
    • Price: 4
    • Quality: 5
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Very good power bank!

    posted by Turmiostuutteri on 12/25/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    Sturdy build quality because i used it in my military service and still working like a charm. Very good capacity for its price. I think that the real capacity is close to 12000-13000mAhs but anyway its chargin my Samsung Galaxy Note 3 three times from empty...
    Cons:
    The cord and adapters are quite bad quality so recommed to use the phones own cords. Also the shiny plastic is geting very scra...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Good product

    posted by KLcoolboi on 12/02/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:less than 1 day

    Pros:
    - It is build quite well, doesn't feel like it's made up cheap plastic. - Comes with multiple adapters so you can charge various devices - two USB output with 2.1A and 1A, good for phones and also tablets with larger batteries - can charge two devices at th...
    Cons:
    - It's a bit heavy, but can't expect a battery to hold a large charge without having a good amount of weight to it - not exactl...
    View Detail » 
    • Overall Rating: 4
    • Price: 4
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 4
    2 DXPoints
    earned for this post
    great product

    posted by vdan00 on 11/26/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    great if you are leaving, but need to charge a device. good capacity. comes with extra adapters one of which i used to charge an old phone. pretty cool.
    Cons:
    misadvertised capacity. have to find a mini-USB cable and charger in order to charge this. It doesn't come with a mini-USB cabl...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Sturdy, Portable, Works like a Charm. A must have!

    posted by JohnEBH on 11/07/2013 Certified Owner

    Involvement:General (knows how to use it) - Ownership:more than 1 month

    Pros:
    Holds 20000mAh - Even if it doesn't, it's definitely still plenty for my uses Cheap - You can't go wrong for ~$25 Well Build - It doesn't feel cheap for the price
    Cons:
    None that I could really find.
    View Detail » 
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