In the 80s, i worked on a coast wise oil tanker, and left my car in the parking lot for two weeks at a time, any time of the year.. . . Never had a problem starting a diesel car after sitting for two weeks, but no electronics were active, such as key fob sensors and security systems. Modern cars have lots of electrical monitoring devices which slowly drain the battery if not driven regularly. 4 weeks of no activity and most cars batteries will be drained sufficiently to not start the car.
I bought a battery tender, thanks to the wonderful suggestive posters on here, which works like a champ.
Many new cars, like laptops, need software updates on brand new models, and one would assume that all brand new sales have the most update software, with the latest update, etc, I would check annually if there are any software updates to your car from the manufacturer./ dealer.
Happened on my laptop, by the time i got the laptop delivered, from the order, the bios was three versions out of date.
Basically in this world, assume nothing is proper and if there is any way to cut costs, it will happen.
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