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How much Tesla battery does scheduling Sentry Mode actually save?
Battery savings from scheduling scale roughly linearly with the number of hours Sentry Mode is turned off.
On Tesla firmware 2024.38 and later, Sentry Mode averages about 150W, which is roughly 3.6 kWh and 4-8% of pack capacity over 24 hours. On older firmware (pre-2024.38) it’s closer to 250-300W and 7-14% per day. Cold weather adds another 20-40% on top of either figure.
Per-hour impact
Each hour Sentry Mode is off instead of running saves approximately:
- ~150 Wh of energy
- ~0.6 miles of range at typical Model 3 / Model Y efficiency (~250 Wh/mi)
- ~0.2% of pack on a 75 kWh battery
Realistic daily savings
| Hours Sentry Mode is off | Energy saved | Range saved | Pack saved (75 kWh) |
|---|---|---|---|
| 8 hours | ~1.2 kWh | ~5 mi | ~1.6% |
| 10 hours | ~1.5 kWh | ~6 mi | ~2.0% |
| 14 hours | ~2.1 kWh | ~8 mi | ~2.8% |
A 10-hour daily off-window adds up to roughly 550 kWh and ~2,000 miles of range saved per year.
For a deeper breakdown see Tesla Sentry Mode Battery Drain 2026 and our practical scheduling guide.