Where is the auxiliary battery installed in the Mercedes-Benz CLS350?

[JuniperRose]

Mercedes-Benz CLS350's auxiliary battery is installed next to the spare tire in the rear trunk of the vehicle. Introduction to the battery: A device that converts chemical energy into electrical energy is called a chemical battery, commonly referred to as a battery. After discharging, the internal active materials can be regenerated through charging—storing electrical energy as chemical energy; when discharging is needed, the chemical energy is converted back into electrical energy. Such batteries are called storage batteries (Storage-Battery), also known as secondary batteries or lead-acid batteries. The relationship between the internal resistance of the battery and the state of charge (SOC): The state of charge (SOC) of a battery refers to the ratio of the capacity that can be discharged to its rated capacity. This data is very important for postal and telecommunication power systems and power battery packs in use.