This Lumsing power bank batteries comes nicely boxed and is very compact but still manages to provide 3000mAh. In terms of size it is a little bit bigger than a lipstick and beautifully crafted – it measures 3.7” long and is square in section, albeit, with nice rounded corners and each side measures 0.86” with the whole device weighing just over 2.5ozs. In the box you get the power bank with a neat Micro USB lead which doubles for charging the device as well as connecting to a lot of smartphones, plus instructions, warranty/support details. If you want to charge an Apple device you'll need the appropriate lead.
The exterior finish is mainly coloured aluminium that looks very chic with white end panels. The top end panel sports a full size USB port with a standard 5V 1A output plus a Micro USB socket for charging. On the side is an on/off switch and a 3 LED charge/charging indicator - when the battery senses no load it switches off automatically. There is also a small LED torch facility built into the front panel which will certainly help you locate your keys etc. The device features electronic charging/short circuit protection etc. plus uses a Samsung power cell sio it should be safe and carries FCC, CE and RoHs approval marks. The unit takes around 2.5 hours to charge from flat .
In use the power bank is easy to use and despite its modest size it will recharge an average smartphone nearly twice but rather than a charge from flat, if your battery is running low, it will prolong your usage of the device itself considerably. In the case of a tablet it will extend the usage time or charge it a bit but obviously not to full capacity. I tested it with an iPhone, Nokia Lumia 630 Smartphone, Samsung Galaxy Tab 3 (7”) and it worked very well with all of them.
Because of its compact size, chic look and reasonable output this is a mini sized external battery power bank that you are likely to have with you when you need it most, plus, it has enough power to be genuinely useful - I like it a lot. Recommended.
In descending order the outputs are 1.3A, 2.1, 1A, 1A and 0.5A.
Blue
lights indicate roughly the amount of power remaining External battery charger for samsung galaxy, and blink
synchronously when charging. To charge it, you will need a micro USB.
It takes roughly a day to charge on a 0.5A charger, quicker with higher
output chargers.
It has one smallish recessed button to turn it on.
WARNING: it does NOT come with a wall charger.
Personal perspective:
I bought this because it had 5 outputs, and in this day and age, you need
to charge a lot of devices, especially when traveling. I think the
printing on the input and the outputs needs to be larger. I have great
vision and I struggle to read it, hence why I put the descending order
of the outputs.
The lack of a separate charger is not a problem
for me, I actually prefer it; one less charger to lug. I have another
power pack with two outputs. That one has a wall charger, so I just
charge this power pack from the 2.1A output of that one, and charge that
one at the same time. It is some much faster. On a recent trip, all
my devices (tablet, 5 phones, iPod, portable speaker - I rotated them)
and power packs were fully charged by morning.
The button is
slightly smallish, make sure it comes on when you press it. It's also
recessed, that way it's not likely to get turned on accidentally.
Plug at least one device mini sized external battery in first! If you turn it on, it will turn off within 10 seconds if nothing is attached.
The one thing that I think would make this perfect is if it had a higher
capacity. That being said, 11,000 is quite good, plus my other one has
12,000. I prefer the long haul, non-stop flights between Europe and the
EU. I'm not running out of power.
At Cable Chick, we use an icon system to indicate how many device charges External battery power you're likely to get out of a Power Bank before it needs to be recharged. Our figures are based on a formula which assumes an average device capacity of 1500mAh, a device power level of no less than 20%, and an 80% Power Bank efficiency rating. Many Power Banks boast efficiency ratings up to and over 90%, but we find that real-world usage in Australian climates typically ends up with an 80% efficiency rate.
We also like to err on the side of caution to give you a conservative estimate rather than make outrageous claims. Generally, the bigger the Power Bank and the smaller the device you're charging, the more goes you get. Other factors can also improve or limit the discharge potential of a Power Bank, so look after them and they'll work better for longer.
Our Formula:
Power Bank Rating (mAh) × Efficiency × Device Depletion ÷ Device Capacity (mAh)
Look for our handy icons to immediately see the charging potential of our power banks for use with smartphones, or use this formula yourself to calculate the number of charges any device could get. All you need to know is the mAh rating of its battery!
