Introduction: DIY 4S 18650 Battery Pack Without Spot Welder
Hey! everyone My name is Steve.
Today I'm going to show you How to Make a very simple 4S Battery Pack with BMS
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
- XT30 F - http://bit.ly/2VkMJaR
- XT30 M - http://bit.ly/2VkMJaR
Banggood
- Soldering Iron: https://bit.ly/2BvOvue
- PCB Standoff: https://bit.ly/2BvOvue
- Kapton Tape - https://bit.ly/2BvOvue
- Battery Holder: https://bit.ly/2BvOvue
- XT30 Connector: https://bit.ly/2BvOvue
- Battery Protection board BMS - https://bit.ly/2BvOvue
Amazon
- Soldering Iron: https://amzn.to/2DW4a8u
- PCB Standoff: https://amzn.to/2DW4a8u
- Kapton Tape - https://amzn.to/2DW4a8u
- Battery Holder: https://amzn.to/2DW4a8u
- XT30 Connector: https://amzn.to/2DW4a8u
- Battery Protection board BMS - https://amzn.to/2DW4a8u
Aliexpress
- Soldering Iron: http://bit.ly/2uOlVjF
- PCB Standoff: http://bit.ly/2uOlVjF
- Kapton Tape - http://bit.ly/2uOlVjF
- Battery Holder: http://bit.ly/2uOlVjF
- XT30 Connector: http://bit.ly/2uOlVjF
- Battery Protection board BMS - http://bit.ly/2uOlVjF
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
You Just Made It Thank you for visiting my Instructables
Stay tuned for next Projects