Electric vehicles lose battery charge when left parked due to systems that remain active even when locked. The battery management system periodically checks conditions and may recharge the 12V battery from the high-voltage pack. Connected services, app requests, climate control, and infotainment also draw power.
Tesla's Model 3 manual estimates a loss of approximately 1 percent per day, though real-world figures range from 0.1 to several percent depending on features like Sentry Mode or cabin cooling. Smaller batteries feel the drain more significantly. Cold weather further complicates range estimates.
To minimize loss, disable unnecessary surveillance, limit app wake-ups, and ensure sufficient charge before long parking periods.
Source: Engadget · Summarized by HeadlinesBriefing