DIY 4S 18650 Battery Pack Without Spot Welder

About: Hi my name is Steve and i'm a Creative and I got Technical skills i can build anything just stick to my account . I'm a YouTuber so you also can see my all videos here https://www.youtube.com/SteveWillsonKujur

Hey! everyone My name is Steve.

Today I'm going to show you How to Make a very simple 4S Battery Pack with BMS

Click Here to See The Video

Let's Start

Step 1: Features

Output Power

  • 2600 mAh @ 16.8V

Input Power " Charging "

  • 1000 mAh Constant Current
  • 16.8v Constant Voltage

Built-in Protection

  • Over Load Protection
  • Short Circuit Protection
  • Over Heat Protection

Step 2: Thing I've Used

LCSC

Banggood

Amazon

Aliexpress

Step 3: 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 4: PCB Board Designing

I Used EasyEDA To Create my PCB

Note - Please see the images for better understanding


Gerber Files - http://bit.ly/2WovoJT

Step 5: Ordering the PCB

Nowa Days it has been very easy to order PCBs and it doesn't cost you much, Yeah you easily do this in a Perf Board but the PCB Looks way better then Perf Board and Very Safe to Work So You can Put little work and money to get Professional Results

For This Project, I've used PCBGOGO Service for Manufacturing my PCB and it took about 24 Hours to Manufacture my PCBs and within 7 Days they Delivered it to my door Steps

And the Quality is Just Amazing

Note - Please see the images for better understanding

Step 6: Soldering

I Gathered all the components and first I soldered the 18650 battery holder to the PCB Board



Note - Please see the images for better understanding

Step 7: Installing BMS

I used some Kapton tape for isolating the BMS Board from the Main Board and then I used some double sided tape to stick on the back side of BMS Board

And then I piled off the protecting layer from the double sided tape and then I align the BMS Board to the Main Board and then I pressed the both Board to get stick properly

  • I soldered 2 XT30 to the Board
  • After all that done, I used some thick exposed wire to jump all the BMS connections
  • And soldered the wire

Note - Please see the images for better understanding

Step 8: Stands Off

After all the components soldered, I used 4 stands off to give it some clearance

Step 9: Before Plugging the Batteries

Before Plugging the Batteries

  • Make sure all the batteries are at the same voltage and same capacity
  • To do that I used my 18650 battery charger to fully charge the batteries, by this I'm sure all the batteries are at 4.2 Volts
  • Now put one by one into the battery holder

Click Here to See The Video

You Just Made It Thank you for visiting my Instructables

Stay tuned for next Projects

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    Discussions

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    kcraske

    5 weeks ago

    A very neat project, looks good when finished.
    Could I suggest you give some details about how the BMS is connected to the batteries and how you recharge the pack when finished. A schematic perhaps.