Unexpected battery drain in electric vehicles after overnight parking can be a concerning issue for owners, leading them to believe that there might be something wrong with the battery system. However, this issue is often caused by some basic oversights by the users themselves.
One of the main reasons for this battery drain is the failure to unbuckle the seatbelt. This is a common occurrence, especially among new electric car owners.
Many customers who don’t use their seatbelts tend to either plug in the seatbelt falsely or fasten it behind their backs to bypass the vehicle’s warning system. When the seatbelt remains buckled, the car doesn’t turn off completely, and certain systems continue to run, resulting in battery drain or a dead 12V battery despite no movement.
Additionally, some electric car models, such as the VinFast, come equipped with a “camping mode.” This feature allows users to utilize entertainment functions and air conditioning even when the car is turned off and locked.
However, if this mode is left activated overnight, it can lead to significant battery drain, ranging from 7 to 10%, depending on usage conditions and duration.
TH (Tuoitrethudo)
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