Converting a regular charger into a usb charger

Phones and tablets

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Converting a regular charger into a usb charger

Hello to all visitors to this site! Probably everyone at home had or still has a phone charger without a usb connector on it. Such chargers are still connected without using any extraneous cables, but have their own wire and connect directly to the phone through their connector. These are now not often seen, since power supplies are already used for a phone with a built-in usb port. I also have such a power supply from an old push-button telephone that is no longer working. And I decided to convert this power supply to a power supply with a usb connector. This alteration will not take much time and is not difficult in the process. To convert the power supply to a power supply with a usb port, I needed:

Instruments:
1) A sharp clerical knife,
2) the hammer,
3) scissors,
4) Electric soldering iron,
5) Glue gun and hot glue,
6) lighter,
7) A simple pencil.

Materials:
1) The power supply itself is 5 volts from the phone,
2) usb connector,
3) Heat shrink tubing,
4) Wires.

The process of converting a conventional charger into a usb charger.
We take our power supply from the phone and cut off the cable from it with scissors or an office knife.

Now you need to open the power supply housing. There were no screws or screws on mine, so I had to open the case in other ways. To do this, take a hammer and with light, not strong blows, hit the glued seams of the power supply. It is not necessary to beat hard, because the power supply can crack us. But after this method, small dents may remain on the charger. Therefore, I recommend making this process either with a rubber mallet or a wooden mallet.

Then we solder off the remaining wiring from the cable from the board with an electric soldering iron.

Next, we take a usb connector and two short wiring (from the power supply cable itself).

We solder the wiring to the power supply board using an electric soldering iron.

We solder the usb port to these wiring soldered to the unit, while observing the polarity, that is, plus and minus. For insulation on the cable, we already put on shrink tubes in advance.

After soldering the connector to the wires, we put on bare places with heat shrink and with the help of a lighter we unclen them using a hot flame.

Now draw with a simple pencil the markings on the power supply housing for the future openings for the usb connector.

Along the lines with a clerical knife, cut off the recess on the power supply housing for the usb connector.

Using a glue gun and hot glue, glue the usb port to the charger body.

We also glue the board to the case in order to hold it tight.

Next, close the power supply housing by gluing the cover to the base with a hot glue gun.

This is what my converted usb power adapter looks like.

Now you can connect a regular usb cable to this power supply and charge your smartphone, tablet or other devices. On this my article is finished. Thank you all for your time! Bye everyone!

May 14, 2017 9:10 p.m. +2

Reply To quote A complaint

I did like that.

And recently I made an amp and powered by charging. Opened and crazy, usb is already installed. but hidden in the case))

April 27, 2017 19:32 0

ValeryYou are saying everything correctly. Of course, I play it safe. This is because I’m used to answering for my words so that there are no complaints later: I connected as they told me, and the tablet died. In addition, very old blocks of the duesbish era have Uxx over 7 V, who knows how the device will behave in this case, what is its allowable input voltage. So here - everything is at your own peril and risk.

April 27, 2017 13:01 +2

Of course, I’m "not on these matters", but here, I think, you play it safe ... Most of the modern Chinese units "sag" under load very much, and therefore have more than six at idle ... Besides, after all we are used to calling the power supply a “charger”, but in fact the charger is in the phone / tablet, and now it’s just “watching” for the elastic ...)))))

April 27, 2017 00:26 0

Only check the voltage, if idling more than 5.5 V, then it is better not to risk it.

April 26, 2017 10:14 p.m. +3

Pay attention to the current. If your charger is less than five hundred milliamps, then do not bother! This is not enough for a smartphone! It will show charging, but almost no charge!
And for a tablet, for example, at the very least, you need a thousand! And then, with active use, such a unit does not compensate for the flow - only with the screen off it can charge. And to enable it, you need two thousand.
In "push-button" phones, such currents were not required. So, the right voltage and the right connector - that's not all!

April 26, 2017, 21:19 0

Thank you very much for the consultation.

It will be necessary to do something like that :) otherwise there are a lot of uncharged chargers.

April 26, 2017 19:37 +2

Quote: aleks888

You can not disassemble the case, but redo the plug that is inserted into the socket

It’s not only possible, but much more appropriate to do just that, without a bunch of extra body movements.

April 26, 2017 16:32 Author +1

Of course you can. But for this you will need the connector itself, suitable for your phone, for example, micro usb. Such connectors are sold on aliexpress and in stores.

April 26, 2017 16:21 +2

As for me, the game is not worth the candle! ... Buy on Alik for two dollars the simplest unit with the declared two amps (he will definitely give out one) and use .... Well, at least

And then what do we have? What was the charge current of the push-button telephone? ... And how much will it charge a smartphone with a dual-ampere battery ??? ...
... And a tablet with a five-ampere ?? )))))
Well, what for it is necessary?

April 26, 2017 15:19 0

Well done! By the way, the chargers are also stored at home from push-button phones))) I have this question. You can not disassemble the case, but redo the plug that is inserted into the socket (smartphone or tablet)?

Converting a regular charger into a usb charger

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