Charging voltage increase hilux gun125
Hilux GUN125 2.4d 2016 model charging voltage is 13.7-13.9v
The car has an 80ah AGM battery that requires a 14.7v charging voltage to stay full.
In Finland, we have to warm up the car's engine in the winter before starting it. the car has a diesel-powered additional heater.
this heater requires a lot of power when it starts.
I have a toyota scanner with which I can raise the charge when the device is connected, but it cannot remain high when the device is disconnected. I have to charge the battery in the winter every week to keep its charge high enough. have you managed to raise the charging voltage of the car charger in some way?