What does the Mercedes-Benz text message indicating starter battery at critical level mean?

[MacMary]

Mercedes-Benz text message indicating starter battery at critical level is a reminder that the battery's charge is low and needs to be recharged. Avoid prolonged vehicle parking: The battery installed in the vehicle will self-discharge during extended periods of inactivity, so it's best to drive the car at least once a week, preferably for a trip lasting 20 minutes or more, to allow the battery to recharge while the vehicle is in motion. Close windows before turning off the engine: The operation of car windows and sunroof relies on battery power, so it's advisable to close all windows before turning off the engine, rather than after shutdown, or using the long-press lock button method to close windows after leaving the vehicle. Maintain battery cleanliness: Regular inspections are an effective way to extend the lifespan of your car battery. Use a professional battery terminal brush or an old toothbrush to clean dust and corrosion from the battery's positive and negative terminals. Apply a layer of Vaseline or grease to the contact surfaces to form a protective coating.