The circuit diagram for 18650 Lithium Battery Charger & Booster Module is given above. This circuit has two main parts, one is the battery charging circuit, and the second is DC to DC boost converter part. The Booster part is used to boost the battery voltage from 3.7v to 4.5v-6v. Here in this circuit, we used a. Now that we understand how the schematics work, we can proceed with building the PCB for our project. You can design the PCB using any PCB software of our choice. Our PCB looks like this below when completed. The PCB layout for the above circuit is also. After a few days, we received our PCB in a neat package and the PCB quality was good as always. The top layer and the bottom layer of the board. Step 1: Get into https://, sign up if this is your first time. Then, in the PCB Prototype tab, enter the dimensions of your PCB, the number.
