Opus BT-C3100 / IMax Battery Charging & Testing Board

This is going to be the first post in my solar battery project series. For several months now, I have been collecting laptop batteries and breaking them down to harvest the lithium ion 18650 cells inside. My goal is to use them to build a large battery bank to store solar power. This project has been going on for over a year now, but unfortunately, I haven’t been documenting it. Going forward, I’m going to try to document my progress along with pictures/details of my built.