having a little trouble with search, but I am sure it is me and not site. just bought 2 12v travel mugs, 16oz, for the next roadtrip, made in china, said to draw 24 watts, anything I need to check/know about using these? thanks 167k, optima batt aprox 3 years old. any advice greatly appreciated!
Assuming it just plugs into the lighter socket, which is only powered when the vehicle is powered, you will be fine.