Quantity   Component name
1 × Mini voltmeter (DSN VC288)
2 × 3D Printing parts STL files https://www.thingiverse.com/thing:4221893
4 × M3-10 Screw
6 × TP4056
1 × Switch bouton
1 × Rotary Switch
2 × GX-12 2 terminal
6 × 18650 holder
1 × Some wire