Power Bank do-it-yourself
In everyday life, people often use gadgets (smartphones, tablets, etc.), but when we go somewhere, we constantly need charging your phone. This problem will be solved by the Power Bank, which can be made in one and a half hours from the available components.Next, I connected two batteries in parallel with each other using bus segments, but note that it is not advisable to solder batteries, this should be done with a powerful soldering iron and very quickly so that they do not managed to heat up. When connecting the batteries, the voltage on both must be the same (4.2 volts), but it's best to charge them separately, and then solder to the battery.As an enclosure I used an old doorbell, from which I first pulled out all the electronics, and I deleted the unnecessary projecting elements using pliers.Next, I installed USB into the place where the switch from the call had previously been built using super glue and soda.I used the same method to install a switch next to USB.The minus battery I soldered to the minus of the converter, the wires take a preferably thick section, because the currents here will be from 1 to 3 amperes, depending on what you charge .
Materials and toolsTools:
- Soldering iron (solder, flux).
- Cutting pliers.
- Stationery knife.
Power Bank schemeI assembled this Power Bank according to this scheme.
Making Power Bank do it yourselfFirst of all, I started making a battery for the future Power Bank, I made contacts from a copper bus. The capacity of the batteries is about 2000 mAh.
>img src="https://sdelaysam-svoimirukami.ru/uploads/posts/2018-02/medium/1518581740_19.jpg" style="max-width: 100%;" alt="Power Bank do it yourself">It is impossible to connect the LED directly, because it burns instantly, and I connected it through a 100 Ohm resistor, using thin wires, connected it to minus and plus.
ResultWell, that's it, the Power Bank is ready for further use.
Improving radio reception
How to cook pea soup - 7 step-by-step recipes
How to remove air from a can
We all have a crisis, but we have the beauty of the Transfiguration of the Soviet sofa
What to give for February 14, 2017 husband, beloved man or boyfriend. Unusual Valentine'
A gift for a dog. We sew a house of rags