wouldn't you also need to worry about the voltage spikes when you're running on battery vs starting the car if you're running an ICE? and would you need to unplug it if you, say, need a jump? feels like you'd also need to install a whole UPS on the other side too if you care about the hardware longevity (not factoring in the sheer amount of dirt/leaves/etc that'll just get caught up in the card itself)