For the most part,
Hot climate degrades batteries faster than colder climates. Non use is bad as
kathyricks states. i.e. parasitic current draw.
Batteries are installed/sold with climate specific characteristics based on the region yu purchase the battery. So if yu buy a Southeastern States Toyota distributed vehicle. it doesn't have the "cold pack" specs. In the Northeast and Canada, yu get the "cold pack" spec'ed car with cold climate batt. This has been battery industry practice for 40+ years.
If yu buy a battery in a Sears in FL,yu will get a hot climate rated battery.
In Minnesota yu get the cold spec battery.
I find in general that the Toyota OE batteries from the Factory are best. Most I've seen are the Japan Panasonics. I'l get more than 5 years of good service. Every Toyota I've ever owned had this battery. The most I've got was more than 7 years. And although they say maintenance free yu can remove the stickers off the cell caps and top-off with distilled water, usually around 4-5 years later and yu might squeeze another year or two out.
If yu abuse and deep cycle any battery yu will definity lose service time of that battery. Auto batterries are not designed to be deep cycled (go dead) and recharge. Marine batteries are only designed for this.
The Dealer replacement "
Toyota True Start" batteries are simply overpriced Garbage. Budget stuff just rebranded "FOR" Toyota dealers.
They just will never last more than the
OE Panasonics which just are unattainable anywhere here Domestically last I searched.
The dealer will not and cannot get yu this Exact Originally Installed battery.
LT