Voltage is reported in milivolts instead of Volts

[g0nz4I0]

The module reports voltage in 100mV increments, so 1 inc = 100 mV, not one volt.
I dont think throught the decoding this is updated.

            case CMS::ProtocolNumber::ModuleStateResponse:
                module_state = {
                    .general_state{static_cast<CMS::GeneralModuleState>(
                        (static_cast<uint16_t>(packet.data[1]) << 8) |
                        packet.data[0])},
                    .module_voltage{static_cast<CMS::ModuleVoltage>(
                        (static_cast<uint16_t>(packet.data[3]) << 8) |
                        packet.data[2])}

[g0nz4I0]

I suggest the following:

static float get_total_voltage() {
        using BCU::Communication::ModuleCAN;

        return (ModuleCAN::strings[1].modules[1].module_voltage +
               ModuleCAN::strings[1].modules[2].module_voltage +
               ModuleCAN::strings[1].modules[3].module_voltage) * 0.1; // the * 0.1 to return volts and not milivolts
    }