PowerBank collect pocket for a penny

Now the presence of PowerBank surprise very difficult. It can be purchased in virtually every shop (just like potatoes or bread), but almost all of them have a fairly substantial size and the price is essential. In this material, I will tell and show you how to assemble PowerBank just pennies, and thus it will easily fit in your pocket.

Cooking accessories

So, in order to collect PowerBank we need to buy only two components, namely:

1. Immediately housing with charge controller. I have purchased several options, and you choose the one that suits you best.

Inside, everything is very simple: the board of control of charge and discharge space under the battery form factor 18650.

I bought the body in a certain online store for mere pennies:

2. 18650 batteries. I bought NCR18650B Li-ion MH 12210 capacity of 3400 mAh in the same online store, and they cost me 148 rubles 20 kopecks per bank.

Agree that the price is not much, if not more, that is, total I spent on the most expensive Pauerbank: 148.2 + 80 = 228.2 rubles.

All this resulted in our spending, and you can begin to assemble our Mobile charges.

Putting PowerBank

It's all very simple: open the cover, insert the batteries with the correct polarity and close the lid (the process takes about two minutes to smoke break).

Turned out here are small boxes that are easy to fit, for example, in the jeans pocket.

Now we have to check the work of our collected units. Check the phone charging:

During charging, the cover can be seen through the white as the light blue LED that indicates that the phone is charging process.

During charging of the PowerBank alternately burning blue and red LED.

The output voltage at no load and the load you will be able to see the following photo:

As you can see, we managed to collect quite working and compact PowerBank just a mere penny. If you liked the material and you want to collect myself the same device, then acquiring a small building on one battery here and silver aluminum cylinder hereAnd batteries here. Thanks for attention!

You may also be interested in:

Simple and easy to use LED lighting cabinets for a penny

Universal RLC tester - an indispensable tool for any amateur radio