Since I have a battery draining cabin heater in my truck, I have had an extra battery installed under the driver's seat, with a simple setup that charges the battery, but only lets it discharge through the heater and the light in the truck bed ( which we always forget to turn off).
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.