Can electrical gadgets that operate when the key is turned off affect the performance of a battery?
Key-off electrical loads are common. The vehicle’s electrical system is adjusted to accommodate this extra drain. Nevertheless, if a car is equipped with devices that require power even after the key has been turned off, care must be taken during extended periods of vehicle inactivity or frequent short trips, since these do not allow the battery to recharge after the drain resulting from starting the engine. If a vehicle is used for short trips only and its electrical system is in good working condition, periodic recharging is required.
