Re: Xantrex problem (or dumb operator error)
Did you put a load on the output, or are you just looking for AC volts with a high-impedance digital meter? A lot of inverters go into "standby" when they are enabled and there is no current draw. A meter is not enough to start it. The clicking may be the unit searching for a load?
For example, we had the power go out during a big game a couple of years ago, so I dragged in a 100 AH gel cell and my (non-Xantrex) inverter and plugged in the TV. The inverter would not start because the TV had shut off. I plugged in a 60-watt lamp, the inverter started, I turned on the TV, turned off the lamp, and we watched the rest of the game.
If you have a battery that measures 12-13 volts DC without dropping, and a 100-watt load on the AC side, and it still doesn't start, then I would worry.
Someone said "Making good decisions comes from experience, experience comes from bad decisions." I say there are three kinds of people: those who learn from their mistakes, those who learn from the mistakes of others, and those who never learn.