Hi! I'm back with another project!
As the title suggested this is a handmade power bank which has a capacity of 4A. Why I built this will be reveal at the end.
Power Bank Description:
- Can hold at least 4A
- 3 USB Ports
- 2 LED in case of emergency. You can adjust their brightness with the potentiometer.
- It's very light since the case is plastic.
Step 1: Set Up
This is the layout for the inside of the power bank.
Obviously you need at least 4 18650 batteries.
I got mine from eBay.
I also bought the 5V converter.
Note that I had to solder off the two usb ports and relocate them to where I want. If possible get a heatsink. In my case I used cable ties to secure the converters on the heatsink.
Also you need 2 LEDs (optional)
I'll show you what they look like in the next page...
Step 2: Cover Up the Bottom
I just used 4 screws to secure the base.
Step 3: LED
This power bank is perfect to bring with me on a camping trip to recharge my phone or this flashlight. If you're interested I would love to go over how I made this...