0 - 30 volt adjustable laboratory power supply with an OLED display.
First I made it with 18650 battery but I kinda don't like it so I changed it to my LG cell phone battery.
Picture 7) This is how thick it is.
First I made it with 18650 battery but I kinda don't like it so I changed it to my LG cell phone battery.
Picture 7) This is how thick it is.