Quote Originally Posted by niky View Post
You can't run a car inverter for 24 hours because the puny electronics and wiring aren't built to run for that long. It's the same reason you can't run a cheap emergency generator bought at ACE hardware for very long periods of time... they're designed for light duty and emergency use... not for 24 hour use.

And idling for hours isn't good for your car, and deep discharging a car battery is a good way to shorten its service life.

Easiest for long brownouts is to have a portable generator that you turn on every few hours just to charge stuff with and run lights on. Safest is to buy a larger diesel generator.
That's the best thing to do if you have enough money and if brownouts are
regular everyday.