Ensure that you do not have any external devices that contribute to the idle power consumption of your car, particularly if you continue to use the subpar original equipment manufacturer (OEM) battery.
Recently, I have come across information regarding certain Toyota (and other) dealerships secretly installing third-party GPS trackers, data collection devices, and immobilisers on new cars, without informing the buyers. These additional devices have been found to drain the batteries, leading to battery failures or depletion. This issue is exacerbated by the fact that new vehicles nowadays are equipped with OEM factory batteries that are barely sufficient. Uncertain whether any Mazda stores have implemented this practice, but it is rather unsettling that any of them engage in it. It is advisable to check under the lower dashboard to see whether there are any concealed dealership-installed gadgets connected to the primary data input port located in that area.