Battery: Taycan E‐Tron - dalathegreat/Battery-Emulator GitHub Wiki
Volkswagen Group MSB platform
- Porsche Taycan (J1 Performance; 2019–present)
- Audi e-tron GT (J1 Performance; 2020–present)
Battery variants
- 79.2 kWh (71.0 kWh usable) liquid-cooled lithium-ion
- 93.4 kWh (83.7 kWh usable) liquid-cooled lithium-ion "Performance Battery Plus"
Wiring
PIN 1: 12v supply Pin 3: 12v Supply PIN 2: GND PIN 4: Pilot line IN (High Voltage Interlock) Pin 5: 12v Ign Pin 9: Pilot line OUT (High Voltage Interlock) Pin 10: Temp sensor Signal (pre-run) Pin 11: Temp Sensor Signal (return) Pin 15: Temp Sensor Ground (pre-Run) Pin 18: Temp Sensor Ground (return) Pin 16: CAN High Pin 19: CAN Low
Only CAN Pins 16 and 19 are populated in both Audi Etron GT and Porsche Taycan Batteries so thats where I have taken the CAN data from
Logs
New logs 22/05/2025 (93.4 kWh Performance Battery Plus) (2021 Porsche Taycan Turbo S) below taken VIA serial using Putty assigned to the relevant COM port assigned to the Lilygo
Individual logs for each listed item and one complete log start to finish at 67% SOC on vehicle display
off_idle_drive_off_charge_end_charge_contactors_off.log
OBD data via Diagnostics Looking at Cell voltages 63% SOC total 751.2v 12-13mv Delta approx 22c temp taycanOBDBatteryData.log
OBD Data from Carscanner App Toggling through menus and again ending with cell voltages display CarScannerOBD.log
LOG in CANFD standalone 30/05/2025 TaycanFDstanalone.log