Tesla Charging Session — SoC-Based Power Curve

This page displays a detailed charging curve for a single Tesla charging session, recorded by TeslaLogger. The chart plots charging power (kW) and battery cell temperature against the state of charge (SoC) — showing exactly how fast your Tesla charges at each battery level.

Understanding your charging curve helps you plan efficient road trips. Most Tesla vehicles deliver peak charging speed between 10% and 50% SoC, then gradually reduce power to protect battery health. By examining real session data, you can see the exact power taper point for your car, firmware version, and charger type — whether it's a Tesla Supercharger V3, Ionity, Fastned, or any other DC fast charger.

What this page shows:

• Charging power (kW) plotted over SoC % — see when your Tesla ramps up and tapers down.
• Battery cell temperature throughout the session — a key factor affecting charging speed.
• Session metadata: date, duration, location, firmware, energy added, and average power.
• Switch to the Time view to see the same session plotted over elapsed minutes instead of SoC.

Data is logged by TeslaLogger — the open-source data logger for Tesla vehicles. Install it to record and analyze all your charging sessions.

Session Details

Average Charging Power (kW) by SoC Window

This matrix shows the average charging power in kilowatts for every possible SoC-to-SoC range during this session. Pick your starting SoC along the top and your target SoC on the left to see how fast your Tesla charged across that window. Green cells indicate the highest average power — the sweet spot for fast charging — while red marks the slowest ranges where the charger tapers. Use this to find the most efficient charging window for your next road trip stop.