Hey! everyone My name is Steve.

Today I'm gonna show How to Make a Universal Battery Charger it can charge any battery up to 22 Volt and it can deliver up to 100 watts fo power

I'll use this charger to charge my 18650 4S3P Lithium-Ion Battery

Click Here to See The Video

Let's Start

Step 1: Features

Input Power

110-220 v AC

Output Power

1.25-24 v DC Adjustable at 8 Amps
Max output 100 Watt

Built-in Protection

Short Circuit Protection
Over Load Protection
Over Charge Protection

Charger Features

Constant Current Charging
Constant Voltage Charging
Full charge indicator
Charging Indicator

Continuously asked Questions

Q - Can I leave it overnight

A - Yes! For Sure this will not overcharge your battery just because we're using constant voltage there will be no potential difference to make your battery overcharge but you just need to set it correctly

Google it for more information

Note - Please see the images for better understanding

Step 2: Thing I've Used

LCSC

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XT60 - http://bit.ly/2mtWmU3
Stand-Off - http://bit.ly/2z8qpDU
LCSC 8$ OFF on your first order - https://lcsc.com/?href=STEVE&source=referral

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Banggood

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24v SMPS - https://goo.gl/bvKXN3
Dc to Dc Step Down - https://goo.gl/bvKXN3
Volt Meter - https://goo.gl/bvKXN3
Heat Shrink Tube - https://goo.gl/bvKXN3
XT60 Connector - https://goo.gl/bvKXN3
Alligator Clip - https://goo.gl/bvKXN3
Soldering Iron - https://goo.gl/bvKXN3
Rubber Bumpers Pad - https://goo.gl/bvKXN3

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Amazon

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24v SMPS - http://amzn.to/2wSnT0Y
Dc to Dc Step Down - http://amzn.to/2wSnT0Y
Volt Meter - http://amzn.to/2wSnT0Y
Heat Shrink Tube - http://amzn.to/2wSnT0Y
XT60 Connector - http://amzn.to/2wSnT0Y
Alligator Clip - http://amzn.to/2wSnT0Y
Soldering Iron - http://amzn.to/2wSnT0Y
Rubber Bumpers Pad - http://amzn.to/2wSnT0Y

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Aliexpress

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24v SMPS - http://bit.ly/2Vva3P9
Dc to Dc Step Down - http://bit.ly/2Vva3P9
Volt Meter - http://bit.ly/2Vva3P9
Heat Shrink Tube - http://bit.ly/2Vva3P9
XT60 Connector - http://bit.ly/2Vva3P9
Alligator Clip - http://bit.ly/2Vva3P9
Soldering Iron - http://bit.ly/2Vva3P9
Rubber Bumpers Pad - http://bit.ly/2Vva3P9

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Note - Please see the images for better understanding

Step 3: 3D Printed Enclosure

I used Fusion to design my Enclosure

3D Printing Files - http://bit.ly/2kXDxIs

Note - Please see the images for better understanding

Step 4: Sponsor

Today's Article is Sponsored by lcsc.com

They are the Largest Electronics Components Supplier From China Ready to Ship within 4 Hours and they ship World Wide

Step 5: Wiring Diagram

Note - Please see the images for better understanding

Step 6: Assembly

I gathered all the component and started with installing the 2 main boards first I've installed the step-down converter module and then I've installed the SMPS Module using couple of screws

Note - Please see the images for better understanding

Step 7: Soldering Power Socket

First, I've tinted the legs of the power socket and then used some small size wire to connect it

Make sure you do this

This module has 3 things, 1 Fuse 1 Switch 1 Socket make sure you connect all the things in series the fuse is already connected in series with a socket you just need to connect the switch with socket

Note - Please see the images for better understanding

Step 8: Soldering Voltmeter & Ammeter

I always try to use some good quality silicone wire as it is softer to handle and can handle high amps and high temperature I soldered 3 wire to the Voltmeter and used some heat shrink tube to shield it

Note - Please see the images for better understanding

Step 9: Wiring

It is very hard to write connection over a text So it is highly recommended to see the wiring diagram

After connecting all the wire I've soldered the XT60 and then used some heat shrink tube to shield it

and then used some bolt to fix XT60 in place

Note - Please see the images for better understanding

Step 10: Wiring Power Socket

Used some force to push power socket in place and used a screwdriver to insert the wire in place

Note - Please see the images for better understanding

Step 11: Wiring Completed

Note - Please see the images for better understanding

Step 12: Power Cord

I've inserted the power cable and turned the switch on

Note - Please see the images for better understanding

Step 13: Setup

Potentiometer

Right - Current
Left - Voltage

Increase and Decrease

Clockwise - Increase
Anti-Clockwise - Decrease

Setting Up

First I used a small screwdriver to adjust the voltage via left potentiometer and then I've connected the battery and set the current via right potentiometer

Note - You can't set the current without any load " So be sure to connect the battery first and then set the current "

3SLithium Battery