Mazda calls its start-stop system i-stop, and it is the detail that decides which battery your car takes. Cars with i-stop restart the engine many times in one trip, so they are built with an EFB battery marked with a code such as Q-85. A regular battery of the same physical size will bolt in, but the i-stop light soon starts flashing and the battery wears out early. Cars without i-stop use an ordinary calcium battery.
After a battery change on an i-stop Mazda, the car has to relearn the new battery before start-stop works again. The technician carries out that reset at the car and confirms the warning light goes out. Newer six-cylinder models with Mazda's mild-hybrid system also carry a 48V battery, which is separate and not replaced by this service. On current Mazdas the battery is under the bonnet, and a memory saver keeps the clock and audio settings.