40v battery pack rebuild for GW battery. This is the electrical schematic for the one I had and rebuilt with 20 new 18650 batteries. This is for reference only, don’t take it as final Gospel design layout as there may be more than one way to wire these up, it will depend on your battery’s management system. The resistors in the schematic are irrelevant, I had to add them to trick the circuit program to allow the batteries to be connected in parallel (same voltage, double the amperage hours). 3.6v batteries will charge to 4.2v. Value in the schematic set to 4v for simplicity of understanding this battery pack.
