According to Mr. Thai Binh Quoc Vu - owner of Ninety Eight Auto garage (Cat Lai ward, Ho Chi Minh City), batteries equipped on cars from factories are usually selected according to the specific technical requirements of each car model.
Battery manufacturers must meet the requirements for size, capacity, starting current, battery technology and compatibility with the electrical system and charging system of the vehicle.
Therefore, original batteries often have high compatibility with the electrical configuration designed by the car manufacturer.
Meanwhile, batteries sold on the market have many different specifications and technologies, serving many car lines. If you choose the right type according to the manufacturer's recommendations, replacement batteries can still operate stably and achieve good lifespan.
The durability of the battery also depends significantly on the conditions of use. When the engine is running, the generator provides most of the energy for the electrical appliances on the car and simultaneously recharges the battery.
However, if a car regularly uses electrical appliances when the engine is turned off, the battery will have to supply more energy. Continuous discharge and recharging, especially when deep discharge occurs, can reduce lifespan. For service cars or cars that frequently travel short distances and start many times, this situation is even more likely to occur.
This is also the reason why a replacement battery can feel less durable than the original battery. After a few years, the operating conditions of the car may have changed, while the car owner still compares the lifespan of the new battery with the original battery used when the car was new.
In addition to electrical load, battery life is also affected by product quality, temperature, start frequency, generator status and charging system. Oxygenated or poorly exposed pile heads can also affect charging and power supply.
Especially, for car models using battery management systems or Start-Stop functions, car owners need to choose the right technology such as AGM or EFB according to the car's design. Do not assume that just using a battery with a larger capacity or a larger start line is better.
When replacing batteries, car owners should prioritize the correct specifications and technologies recommended by the manufacturer, and check the charging system before installing a new battery. If the car has many additional electrical appliances, it is necessary to re-evaluate the usage needs, especially the electricity consumption when the engine is turned off.
Therefore, original batteries may have good durability thanks to being chosen to suit the car configuration, but that does not mean that all replacement batteries are inferior. Quality, compatibility and operating conditions are the factors that determine the actual lifespan.
