Barely noticable. will check for you this night. From what percentage do you want to start the test 100% or the safe 80% i set the battery manager to stop currently? On the high demand side, navigating with no charger plugged in is also very possible. I drove home yesterday and only noticed 3% drop from 68% to 65% on the 18 minutes drive. Forgot to plug in charger, noticed at home. No idea if that means interpolated ~600 minutes navigation with OLED on?? That sounds too fantastic.