The long answer: " The negative battery cable has an electronic control unit on the battery end of it called an intelligent battery sensor (IBS). Registering a new battery resets the algorithm back to optimal charging voltage for the specified battery. Q: Why do I need to register a new battery?Ī: The short answer is that BMW designed the charging system with an algorithm that varies the rate of charge by the age and type of the battery installed. Over time, improper charging may have detrimental effects on the lifespan of your cars battery and the operation of the vehicles electronics. Q: I replaced my battery and it works just fine, why all the fuss?Ī: Disregarding the need to register and code for a new battery may result in improper charging. Registration and coding will not be successful on older vehicles that are equipped with basic power management systems. Q: I have an older E90, does this apply to me?Ī: This guide only applies to vehicles equipped with IBS (intelligent battery sensor).
Please like and share if this guide helps you out! Why pay a dealer or an indie $70-200+ to register your new battery? Continue reading if you’d like to know why it’s important and how you can get it done yourself!
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