They Wouldn't Add This Feature To Their $150 Calculator...

In this video, I modify the Casio fx-cg50 with a custom circuit board and lithium battery to allow seamless recharging capability. Check out the project here: https://www.printables.com/model/1401... If you would like to recreate this project yourself but are unable to solder the components, PCBWay offer an assembly service where they order the components and install them for you. The files (pick and place) for this assembly service are also included on the Printables page. Although this video itself is not sponsored, the project on Printables is funded by PCBWay. I've always been happy with their product quality, and i would suggest you use PCBWay when making this board.