Parking mode is probably one of the most important features a dash cam offers. But it is also one that requires a little more attention than just tapping some setting controls on an app. To properly run parking mode, you will need constant power sent to your dash cam. Typically, it means you have to hardwire the dash cam to your electrical system. But there are disadvantages to this method. Car batteries last much longer when stored in a charged state. But the constant draining and charging by your dash cam can damage the battery cells prematurely. There’s a name for this - battery sulfation.
Of course, the extend of damage depends on the age, capacity, and type of car battery. Most cars nowadays don’t have a massive battery, so right off the hop, power is already limited. And with the average driving duration of less than an hour daily for most urban dwellers, cars are being left parked longer. We see more problems to the life and performance of their car batteries.