yes, but this is dedicated to just TV and DVD. don't have to worry about draining house battery.
in my 5er now, have not taken a trip yet, but the battery will fit in cabinet under TV. no need to take out but every 5 days to charge.
might be a better way, but works for us. have gotten most of our ideas from this great website. never run out of reading.
I bring it inside to attach the small inverter into. I could leave it outside, but I like to turn off the inverter at night. someday I will get an inverter that has a remote switch.