How long does a car battery last? How do you maintain it?

A car battery, also called a storage battery, is a very important automotive component. Generally, car batteries are classified into several types: ordinary storage batteries, dry-charged batteries, and maintenance-free batteries. The normal lifespan of a car battery ranges from 1 to 8 years, depending heavily on the condition of the vehicle.

What gas is inside a car airbag?

The protective function of airbags is mainly due to the cushioning effect of the gas they contain. But can any gas be used as the filling gas for airbags? No. Many people don’t know what gas is inside airbags. In fact, airbags are filled with nitrogen. Nitrogen is used primarily because it is inexpensive, easy to store, and chemically stable.