i guess we'll find out. the 12 volt on our last hycam was original at 10 years old when we traded for this one. same driving scenario. other than our once a year florida trip, it mostly sits.
not having any 12v problems with toyotas over the last 25 years allows me the luxury of sleeping well
I think the older Toyotas did not have a 12-V-battery-management system with a battery sensor, and they kept the 12-V battery fully charged at all times as long as the car was driven every now and then. The newer Toyotas with a 12-V-battery-management system with a battery sensor hardly charge the 12-V battery no matter how long or how often the car is driven. They try to keep it at around 80% SOC with minimal charging by using a very complicated charging algorithm. In fact, you could even be driving the car and still draining the 12-V battery.
