Can a human body live without blood? Unfortunately, in this 21st century, no alternative is found of human blood even after medical advancement is much advanced. Similarly, the car battery is considered the car’s lifeblood, and no effective alternative has been invented so far.A car battery is assisting your car engine in starting and providing power to all other electrical components of your car.So, proper maintenance is mandatory for your car battery. For this, you have to know how often should you replace your car battery.This write-up shares the facts about car batteries and lets you determine the car battery