Summary:
A car battery stores and supplies electrical energy to power the vehicle's systems. It works similarly to a regular battery, with positive and negative terminals allowing electrons to move and generate electricity. Car batteries typically last 3–5 years and should be replaced when starting the car becomes sluggish. They can be identified by their location (usually in the engine bay, sometimes in the trunk) and connected wires. To replace a battery, match its size, terminal arrangement, voltage (usually 12V), and capacity (e.g., 75 Amp Hours) to the old one.

Mentioned Terms:

• Battery: A device storing and supplying electricity for car systems.

• Terminals: Positive (+) and negative (-) points for electrical connection.

• Voltage: The electric potential, commonly 12V for car batteries.

• Amp Hours (Ah): A measure of the battery's storage capacity.

Practical Tips:

• Replacing a battery is easy to do yourself, saving installation costs.

Costs & Replacement Intervals:

• Battery lifespan: 3–5 years.

• New battery cost: $100–$250.

• Installation cost at service centers: $20–$50