Introduction: Build a Power Bank in $2
Hey! everyone My name is Steve.
Today I'm going to show you How to make a Power Bank in just $2 not believing?
Follow me and you'll get it
Click Here to See The Video
Let's Start
Step 1: Features
Power Input
- 5v 2A via a micro USB
Power Output
- 5v 1A And 5v 2A Dual USB
Capacity
- It depends on how much battery you added
Safety Features
- Short Circuit Protection
- Over Voltage Protection
- Over Charge Protection
- Over Discharge Protection
Step 2: Things You Need
Step 3: Where to Get Free 18650 Batteries
I used my old laptop battery to get the cells check the video down below
Step 4: How to Check How Much Capacity Is Left
I used a Battery Capacity tester to check the real capacity check the video down below
Step 5: Assembling Part 1
- I used 18650 battery holder to hold the 6 battery that I salvaged from an Old laptop battery
- After that, i used a thick wire to solder all the 18650 in parallel configuration
Step 6: Assembling Part 2
- I used dual sided tape to stick the battery and the Board to the Acrylic sheet
Step 7: Completing
- And then I soldered the 2 wire to the board ( see the image )
: Notice - Please be careful about the polarity
Click Here to See The Video
You Just Made It
Now just Plug the power and enjoy
Thank you for visiting my Instructables Stay tuned for next Projects