Tesla Model S: HV Battery Charge/Discharge - 4th Generation Tool (Out of Vehicle)
Tesla Model S (2012-2026) Service Manual / Battery System / HV Battery Charge/Discharge - 4th Generation Tool (Out of Vehicle)
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Setup
Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
Starting/Discharging the System
Starting the System
Press the emergency stop button to disable HV systems.
Pull out the display/keyboard/trackpad tray.
Press the red power button to turn on the on-board PC.
Follo
Charging the Battery
Select Manual Mode from the Charge/Discharge Mode menu.
Type the desired SOC in the Target SOC% field, or drag the
Target SO
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Removing the Maintenance Panel
To check fluid levels, remove the maintenance panel:
1. Open the hood.
2. Pull the maintenance panel upward to release the
clips that hold it in place.
CAUTION: The maintenance panel protects the
front trunk from water. When re-attaching, make
sure it is fully seated.
Checking Battery Cool
Raise Vehicle - 2 Post Lift
Warning: "Jack mode" must be activated on vehicles with air
suspension before lifting the vehicle. Failure to do this might lead
to suspension damage and could cause serious personal injury.
Note: Vehicles with air suspension might need the
suspension to be set to "High" or "Very High"
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