Why does the Volvo S90 have two batteries?

[DeAlejandro]

Volvo S90 has two batteries to better power the vehicle. One battery is located in the engine compartment, and the other is on the right side of the trunk. The lifespan of a car battery is related to various factors such as the vehicle's condition, road conditions, driving habits, and maintenance. Drivers who lack knowledge about vehicle usage and neglect maintenance may experience battery failure within six months. Generally, newer cars are more battery-efficient because the starter motor works better and saves battery power, while the alternator functions well, allowing the battery to charge fully. 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 composed of lead and its oxides, with a sulfuric acid solution as the electrolyte. How a Car Battery Works: It uses a lead plate filled with sponge-like lead as the negative electrode and a lead plate filled with lead dioxide as the positive electrode. During charging, electrical energy is converted into chemical energy, and during discharging, chemical energy is converted back into electrical energy.