NormalModel SModel X~0 USD
Model S/X 60/70/75: low pack voltage and limits at 50 kW/125 A chargers
Due to the lower voltage (≈350 V and lower at low SoC), power on 125 A DC chargers is limited to ~35–40 kW. This is normal.
Battery · 60, 70, 75
Drivetrain · RWD, AWD
Updated · 2025-09-16
At DC stations limited to 125 A, real power ≈ U × I.
For 60/70/75 packs with a nominal of about 350 V and even lower voltage at low SoC:
- 125 A × 325 V ≈ 40 kW,
which explains "doesn't reach 50 kW". This is normal behavior, not a fault.
Tip: for maximum at such stations, raise SoC/battery temperature before the session.
Links
- Discussion of the 125 A limit and ~38–40 kW: https://teslamotorsclub.com/tmc/threads/chademo-lvl-3-charge-rate-price-worth-it.164491/
- About pack voltage: https://teslamotorsclub.com/tmc/threads/voltage-of-model-s-motors.50391/
- General info about DC fast charging: https://batteryuniversity.com/article/bu-1004-charging-an-electric-vehicle
Sources
- https://teslamotorsclub.com/tmc/threads/chademo-lvl-3-charge-rate-price-worth-it.164491/
- https://teslamotorsclub.com/tmc/threads/voltage-of-model-s-motors.50391/
- https://batteryuniversity.com/article/bu-1004-charging-an-electric-vehicle
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