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Where is the auxiliary battery of Mercedes 320 located?

1 Answers

CaliDella

07/29/25 9:35pm

The auxiliary battery of the Mercedes R320 is located under the front passenger seat. You need to remove the floor panel to see it. There are two batteries in total: the larger one powers the vehicle's electrical equipment and is used for starting, while the smaller one is for emergency gear unlocking when the main battery is dead. Introduction to car batteries: A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. Typically, the term "battery" refers to a lead-acid battery, which is mainly made of lead and its oxides, with a sulfuric acid solution as the electrolyte. How a car battery works: It uses lead plates filled with sponge lead as the negative electrode, lead plates filled with lead dioxide as the positive electrode, and a 22-28% dilute sulfuric acid solution as the electrolyte. During charging, electrical energy is converted into chemical energy, and during discharging, chemical energy is converted back into electrical energy.

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