if your batteries get too low a lot of amps won't like it, i've had sub amps do the wierdest shit while running off just batteries.........overall probably personal preference, i'd probably start the car, but it's up to you and your carI wouldnt, run it off the battery and start the car every hour to charge it back up //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif unless your using a setup with a huge amp.
neatoI have aremote start with a voltage monitor, if my voltage drops below 11 volts, my
car automatically starts and runs for 15 minutes to bring the voltage back up.
Ask him to prove it //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gifneato