I need 110 that work through ignition/cranking.
I've been struggling with the proper setup to provide 110v outlets (probably never draw more than 100 - 150 watts).
I've used inverters before but they shut down when the car battery's voltage drops during cranking.
I'm amicable to either using a lighter outlet or wiring it directly to battery.
I would consider putting a small UPS behind the inverter, but the UPS guys say that's a no-no even with a pure sine wave inverter. Most of the UPS are also pretty big and bulky...I'd like to keep the setup small so I could tuck it all under a front seat.
I've also considered the DC - DC options, but that would limit my flexibility with what could be plugged in.
This installation is going in a 2006 Honda Odyssey...and there's no room under the hood for a spare battery.
I'm not expecting to ever run the items very long while the car engine is off...I just don't want to have shut things down every time we stop for fuel or the bathroom.
Thanks for any help you can give me in advance.