Electric vehicles lose battery charge even when parked and unused for extended periods, and the reasons aren’t always obvious. Some factors causing this drain are completely beyond an owner’s control.
Unlike conventional cars that only draw minimal power when off, EVs often run background systems—climate controls, battery thermal management, and software updates—that continuously sip energy. The rate of vampire drain varies by model and conditions, but it’s a common trait across all electric vehicles. Understanding what causes this idle discharge can help owners plan better for long-term parking situations.
Source: Engadget
