Should the positive or negative terminal of a car battery be connected first?

[LaJade]

First connect the positive terminal, then the negative terminal. 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, what people refer to as a battery is a lead-acid battery. That is, a battery mainly made of lead and its oxides, with a sulfuric acid solution as the electrolyte. How car batteries work: They use lead plates filled with sponge-like lead as the negative electrode, lead plates filled with lead dioxide as the positive electrode, and a 22% to 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.