Surprising little facts: Corporate help desk number US confirms battery does not require ANY service. Then asked the same question to UK Corporate help desk: battery requires regular maint.
Question: Does the CX5 @ UK have a different altogether battery in comparison to US? My guess is NO.
Smart car owners know that the batteries need attention just like some other parts of the vehicle. However the vast majority of car owners struggle to keep up with basic maintenance like oil changes and simple fluid refills let alone check their battery. Some do not even know what a battery looks like or where it is.
Here on this forum the vast majority are knowledgeable about these things but we are the clear minority in the bigger picture.