Should car battery be replaced every 12 months? Is that true?

Generally, car batteries should last at least one year, although neither car manufacturers nor battery-makers ever declare a battery’s lifespan.

Try to replace your car’s battery with a maintenance-free battery that has an indicator showing its state of charge, so that you can be aware of its health. If you seldom open your car’s bonnet, then the best advice is to replace your car’s battery every year, but that does not mean car batteries have a lifespan of only 12 months.

These days, many cars come with stop-start systems, which demand more electrical energy. Such cars have more efficient alternators, heavy-duty starter motors, and specially designed batteries.

The alternator is designed to cope with frequent starting and, hence, charges the battery more rapidly. It is the same with the starter motor, which is built to sustain frequent starts without overheating.

WHAT IS THE IDEAL CAR BATTERY VOLTAGE YOU CAN HAVE?

Measuring your car battery’s voltage can be a great way to determine how charged your battery might be. The ideal car battery voltage range will provide you with a relevant interval according to which you can measure precisely what the voltage says about the battery’s current charge.

A perfect voltage with the engine running is between 13.7 and 14.7V. With the engine off, you should get a reading of 12.6 volts. If the battery isn’t fully charged, it will diminish to 12.4V at 75%, 12V when it’s only operating at 25%, and down to 11.9V when it’s completely discharged. This data and the way it relates to the design of your battery should provide you with some useful insight into the functioning capacity of your car battery.

CAR BATTERY HEALTH MONITOR BY ZUS SMART DRIVING ASSISTANT APP

Monitor your car battery health and avoid the hassle of a drained battery. Identify potential issues by tracking voltage over time and get alerts whenever a battery check is recommended.

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Reference: 

https://shop.advanceautoparts.com/r/advice/car-maintenance/car-battery-voltage-range