https://youtu.be/LuB8Xf2oraY In this electronic DIY project , you will see how to make a very convenient 18650 battery charger using the popular TP4056. This home-made charger can charge 6 lithium ion 18650 cells at the same time, making it easy to use. I am also using a voltage tester applied to every cell individually, and current tester to measure direct current applied to all the cells. *Youtube channel : https://www.youtube.com/user/berrimaghassen *My Facebook page: https://www.facebook.com/DIYProjectsG/ *Instructables: https://www.instructables.com/id/DiY-Lithium-ion-18650-Cells-Charger/ For this project I have used following parts: 1) 3D Printing parts STL files 2) Mini voltmeter (DSN VC288) 3) 4 x M3-10 Screw 4) 6 x TP4056 5) Switch bouton 6) Rotary Switch 7) 2 x GX-12 8) Some wire 9) 18650 battery holder