Make Your Own 4S Lithium Battery Pack

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 4S 2P lithium Battery Pack

Click Here to See The Video

Let's Start


Step 1: Gallery

Step 2: Features

Output Power

  • 5200 mAh @ 16.8V


Input Power " Charging "

  • 2000 mAh Constant Current
  • 16.8v Constant Voltage


Built-in Protection

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

Step 3: Things You Need

Recommended Products

2. https://amzn.to/2yr81bX


Where To Buy "Cheapest"

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Banggood

1. Connector Holder - https://goo.gl/Cyk76V

2. XT60 Connectors - https://goo.gl/Tm4rRQ

3. SUNKKO 787A+ Spot Welder - https://amzn.to/2yr81bX

4. 18650 Battery Pack Spacer - https://goo.gl/ba67t6

5. Nickel Plated Steel Strip - https://goo.gl/GgpGdq

6. Battery Protection board BMS - https://goo.gl/zcgqBJ

7. Black Silicone Wire Cable - https://goo.gl/bMmPid

8. Red Silicone Wire Cable - https://goo.gl/qMCbD7

9. Kapton Tape - https://goo.gl/KPagVx

10. Mustool® MT223 60W Soldering Iron - https://goo.gl/iH7d5C


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Amazon

1. Connector Holder - https://goo.gl/Cyk76V

2. XT60 Connectors - http://amzn.to/2gShZaJ

3. SUNKKO 787A+ Spot Welder - https://amzn.to/2M93P2b

4. 18650 Battery Pack Spacer - https://amzn.to/2M8HSka

5. Nickel Plated Steel Strip - https://amzn.to/2yqNuE3

6. Battery Protection board BMS - https://amzn.to/2trNVsm

7. Black Silicone Wire Cable - https://amzn.to/2MDAsWV

8. Red Silicone Wire Cable - https://amzn.to/2MDAsWV

9. Kapton Tape - https://amzn.to/2K3piJt

10. Mustool® MT223 60W Soldering Iron - https://amzn.to/2K5NBcZ

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Aliexpress


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Step 4: Assembly

First Step

  • Make sure all the batteries are at the same voltage and same capacity
  • Now put one by one into the battery holder
  • Now use Kapton tape to tape it all

Kapton Tape - it is used to avoid the heat basically it is a heat resistance tape

Step 5: Welding

Second Step

  • Now cut down the Nikkle plated strip tape at right length "See the image"
  • First, make a pair of 2 parallel battery as shown in the picture
  • and then connect all the 4 pair in series
  • This connection is called 4S 2P
  • You can also see the connection diagram above

4S - Stands for 4 Series

2P - Stands for 2 Parallel

Step 6: Meetup

  • Now use a multimeter to measure the battery voltage now I got a reading of 16.49V it may differ from mine reading is totally depends upon the charge of the battery
  • Now use Kapton tape to cover the back side of the BMS with several layers
  • Now use a double-sided tape to stick the BMS to the Battery

Step 7:

  • Now use a soldering iron to pre-tin the solder pad
  • Now connect all the pads with small wire as shown in the images
  • You can also see the pictures as reference

Step 8: Favoriate T60

  • I love to use XT60 everywhere
  • Now I used the special holder to hold the XT60
  • And used some 14AWG silicone wire and soldered on the XT60
  • Now used some heat-shrink tube to secure the connection

Step 9: Final Step

  • Now I soldered the XT60 wire to the BMS
  • And now used a multimeter to see the battery pack is working
  • It's done

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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    2 Discussions

    0
    None
    DarianK4

    Question 3 months ago on Step 7

    A little confused by the wiring diagram. the picture showing the wires soldered onto the pcb is a tad blurry, and the diagram provided by banggood shows the connections for the port on the side rather than the pads.

    0
    None
    MaxxB1

    5 months ago

    How do you charge this pack?