Explore Camp Mode energy assumptions—then verify in the car
Change arrival charge, temperature, hours and the next driving leg to see a broad uncalibrated range. The result compares assumptions; it does not clear a trip or predict your Tesla.
Model the overnight stop
Use the usable capacity and road efficiency estimate you trust. If you are unsure, keep the conservative defaults.
See the assumptions and their spread
The result separates the modeled Camp Mode range from the next-drive arithmetic without calling either a vehicle forecast.
How the scenario model works
Scenario model v1.2 combines an editorial standby assumption of 0.18–0.32 kW with a deliberately broad climate-load range based on the selected temperature gap. These coefficients are not Tesla specifications and have not been calibrated against a published TeslaMattress field dataset. The model then adds simple next-leg arithmetic from the distance and Wh/km or Wh/mi value you enter.
Use the spread to identify fragile assumptions, not to certify a trip. Sun, wind, humidity, battery age, software, elevation, occupancy, accessories, detours and charger availability can move the real result outside this range.
Assumptions and arithmetic used by model v1.2
The calculator uses the following editorial constants. They are published here so the output can be reproduced and challenged; none is a Tesla specification or a measured TeslaMattress benchmark.
| Input condition | Lower-use value | Higher-use value |
|---|---|---|
| Vehicle standby | 0.18 kW | 0.32 kW |
| Cabin/outside gap 0–4°C | 0.25 kW | 0.55 kW |
| Gap 5–10°C | 0.45 kW | 0.90 kW |
| Gap 11–18°C | 0.75 kW | 1.35 kW |
| Gap 19–28°C | 1.05 kW | 1.90 kW |
| Gap above 28°C | 1.35 kW | 2.50 kW |
| Outside below −10°C | Add 0.20 kW | Add 0.45 kW |
- Camp Mode scenario use
- (standby kW + climate-load kW) × hours per night × nights
- Next-leg road use
- distance in km × entered Wh/km ÷ 1,000
- Post-drive state of charge
- (arrival battery kWh − modeled camp kWh − road kWh) ÷ usable capacity × 100
Illustrative default-input example
A 75 kWh usable-capacity input at 60% arrival represents 45 kWh. With a 15°C temperature gap for nine hours, the model combines 0.18–0.32 kW standby with 0.75–1.35 kW climate load: 8.37–15.03 kWh overnight. A 150 km next leg at 190 Wh/km adds 28.5 kWh. The arithmetic leaves roughly 2–11% after that leg, shown by the interface as a broad rounded band—not as a forecast, clearance or recommended plan.
Use official controls
Tesla describes Camp Mode as attempting to maintain cabin temperature while the vehicle is in Park and also notes operating limits, including battery state. Behavior can vary with vehicle and software. Read the current owner manual for your vehicle, inspect the car before sleep and route with Tesla Trip Planner.
Camp Mode questions
How much battery does Tesla Camp Mode use overnight?
There is no single reliable percentage. Temperature gap, vehicle, battery size, wind, sun, humidity and accessories all matter. This calculator models a low-to-high climate and standby range instead of promising one number.
Can I rely on this estimate instead of Tesla Trip Planner?
No. Use it to test whether your plan has a sensible margin, then check live vehicle data, weather and Tesla Trip Planner. The car is the authoritative source for its current battery state.
Why do I enter battery capacity manually?
Usable capacity varies by vehicle version, market, age and state. A manual estimate is more honest than guessing an exact pack from a model name.
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