【2018】 Lumina 10000 mAh Ultra Compact Portable Charger 2-Port External Battery Power Bank with High-Speed Charging Technology
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- Sophisticated Design: strong and durable polycarbonate shell for a compact drop resistant body
- Fastest Charge, Every Time: intelligent microprocessors detect the ideal voltage and amperage to deliver to your device for the quickest charge
- Dual Charging Ports: for maximum usability, our dual charging ports are able to charge up to two tablets at full speed simultaneously (4.8A total output)
- Lifetime Warranty: contact us any time by checking Your Orders and clicking Contact Seller
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Power Bank 10k mAh
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The power bank came in a nice cardboard box that presents the battery pack well with a fold open lid. The box had a paper sleeve around it with a green design, but the same details were written on the box itself. Inside was a charging cable, instructions, and the power bank itself. The power bank did come fully charged which is a plus.
The battery pack is fairly big but packs a lot of juice for its size. 15000mah is a ton, my iPhone 5s battery is 1558mah, so this should give me a little under 10 phone charges. The casing of the power bank is a nicely finished grey aluminum, similar to the smooth aluminum on apple products. The only thing on the outside casing is the brans "Lumina" this gives the product a super clean and sleek look. The edges of the battery are beveled so that you will not be cut on sharp edges. The bottom of the power bank has some details of the product, it says normal output is 5V~2.4A but the battery pack is able to provide up to 5V~4.8A; I don't really monitor the output numerically, all I can tell you is that it works. The battery pack will quickly boost your phone to 80% and then ease in the rest of the battery, apparently this is better for the battery in your device. The top of the unit has a LCD display that shows the capacity of the battery pack as a percentage (when it fades the section is matte black), there are also two USB ports to charge two devices at once, there is also a micro USB-in to charge the pack. The supplied charging cable is short, but durable; the cable does not need to be long for this because you will not need to be using it while it's charging. If you have a phone with a micro USB charging port, this charging cable could double as a phone cable so that you do not need to deal with long cables between the battery and your phone. Activating the LCD screen to show the power is as easy as shaking the device, I like that you do not need to deal with switches. The entire unit has no switches, just plug in and go. I like to carry this with me in my school backpack, this way if my phone or ipad run out of battery, I do not need to be tethered to the wall with a cable.
A bit heavy and big, but to be expected of a high capacity battery.
Overall I think that this device is well constructed and really useful to own, It frees me from having to worry about conservatively using my phone battery. I would recommend this product for its, capacity, design and ease of use.
First test, I charged a dead iPhone 6, from 0% to 100%. It took several hours, but I did not really care about length of time; I care more about the battery capacity and how many devices it could charge. The battery as delivered has 78% and upon charging the iPhone to full, there was only 20% capacity remained.
Second test, I charged an iPad Air 2 from 4% to 100%. The battery is 100% full. When the iPad Air 2 was changed full, the battery level was 42%.
So it took around 60% of the battery's capacity both time to charge each of these devices. Then it is no better than many battery/charger out there, forget about charging your iPhone multiple times like some reviewers claimed.
I am still debate if I should keep it. It is quite a bit heavier than some of my battery, yet it performs no batter.
UPDATE: I have had this for a while now and DANG can it hold a charge!!! I took it for Thanksgiving, used it multiple times and I JUST had to charge it (Dec 12!). This is awesome! I may have to buy another one...