How much does the battery for a Mercedes KEY cost?

The cost of a battery for a Mercedes-Benz key can vary depending on the model and year of the vehicle, as well as the source from which you purchase it. On average, a replacement battery for a Mercedes key can cost anywhere from $15 to $50. It is important to note that some Mercedes keys may require specialized batteries that are not commonly found in regular stores, so it is best to check with a Mercedes dealership or authorized repair center to ensure you get the correct battery. Additionally, if your Mercedes key has a built-in fob or other electronic features, the cost of the battery may be higher.