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Why is battery registration important for modern vehicles and what happens if it is not carried out?

Modern vehicles have intelligent power management systems that "learn" battery characteristics, such as capacity, age and charging behaviour, and adapt the charging and discharging strategies accordingly to optimise the power and extend the service life. If an old battery is replaced with a new one, the power management system must be informed by registering the battery using a diagnostic device.

If the new battery is not registered, the system can continue to work with the data from the old battery, resulting in over- or undercharging. This can damage the battery or cause it to wear prematurely. In addition, the service life of the new battery can be greatly reduced and functions, such as the start-stop system, can fail or become unreliable. The vehicle also stores fault codes that can cause unnecessary visits to the workshop.

Correct battery registration is therefore important to ensure the optimum power and service life of the battery, as well as the reliability of the vehicle functions.

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Battery - Starter battery - Battery registration