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Putting a 12V charger





In this article, we will look at how the Master made a 12-volt charger from components purchased on Ali. The parameters of the assembled charger are as follows:
Nutrition
-110-220 VAC

output power
-1.25-24 V
-0 - 8 A

- Short circuit protection
- Overload protection
- Overcharge protection
DC Charging
-Constant pressure
- Full battery indicator
-Charge indicator

Now let's see which master used
Materials and tools:



-Acrylic sheet;
-Fasteners;
-Heat-shrink tubing;

-Clips;
-Soldering iron;
-Silicone legs;
-Drill;
-Drill;







Step One: Fasteners
Fasten the fasteners to the power board and lowering board.



Step Two: Acrylic
Acrylic will play the role of the body on which all the details are mounted. Removes protective layer from acrylic sheet. Places on a sheet electronic devices.




Marks the sheet at the mounting points of the boards. Drills hole marks 2, and then 3, with a drill.








Fastens the boards to the acrylic sheet.




Step Three: Scheme
The device is installed as follows.

Step Four: Installation
According to the circuit, solder wires to the voltmeter.





Glues double-sided tape and secures the voltmeter and connector on acrylic.





It connects the converter., The wire extends under the board.







Connects clamps to connectors.





Connects the power cord.



Step Five: Cover
It makes and fastens the lid from acrylic. Adhes silicone feet.





Step Six: Setup
Now you need to adjust the current strength and voltage. The master shorts the clamps and sets the required current with a potentiometer. Then disconnects the clamps and sets the voltage. The voltage of the master sets 13.8 V, the current according to the formula battery capacity x 1/10 = current.








Seventh step: charging
Now it remains to connect the clamps to the battery and charge. According to the author, upon reaching the charge, the device will automatically turn off.




Here is a compact charger obtained from the master. Of course, the security of the device is questionable. At a minimum, it was necessary to carefully consider the case and make it more closed.








The entire process of manufacturing a charger can be seen in the video.
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4 commentary
Quote: aliushaher
You can buy a ready-made power supply from a laptop on Ebee with the same parameters.

Yah?? Right with the same parameters ??
Lord, why do all this? THREE units are purchased here on aliexpress or the like, according to rough estimates, there will be at least 10-15 UE together. Then you need to rivet the body, assemble, and for what?

You can buy a ready-made power supply from a laptop on Ebee with the same parameters.

If you are painfully wanting to solder something, then there is a wonderful charging unit for sealed batteries
There is no protection against reverse polarity, these blocks are lit from entanglement, verified))
The case has not been completed, a foreign metal object has hit - goodbye to the memory! Adjustments are inconvenient, a screwdriver popped off the slot - goodbye memory! smile

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