what brand is your inverter? The red thing under the cabinet?
Looks like the ones I was looking at on e-bay. Can you give some feedback? Did you try it out yet with lets say a PC or Stereo system. How does it work? Do you get any buzzing sounds through your car stereo when the inverter is on?
Other then that, you'r making progress, that is good. Keep up the work and post many pictures.
I did get the inverter off of E-Bay, it is available from other places as well, but E-Bay had the best price. I have not yet tried it with anything other than the lights that are installed. The mini fridge gets installed next week and I plan to stick with a car stereo for the stereo system and just put in a toggle switch to dump DC power right into it from the battery so it can run without the key in the ignition.
So I have not yet tried the stereo with the inverter on, mostly because the stereo installed stinks right now and a lot of static comes out of the speakers, whether this is the stereo or some blown speakers I have yet to diagnos. I use a smaller inverter in my truck with my laptop without any issues, never tried a full size PC though. I have a laptop with an USB GPS antennae that I use for travel navigating.
I will let you know what I find as testing continues.
1988 Chevrolet S6000 8.2L Detroit Diesel
My cheapo Vector inverters give me no problems with the TV, computer, stereo, fluorescent lights....nothing. Strangely enough, in fact, my fluorescents buzz more on shore power than on the inverter though either way it is barely audible.
For what it's worth most UPS units for computers use a modified sine wave just like the cheap inverters and they work great. Just don't try and run your laser printer when the power goes out.
Laser printers heat the roller so yes, they draw an incredible amount of power. On top of that I believe the electronics in there count on the sinusoidal waveform to make calculations. There are other digital devices that do the same. I have seen other devices that don't work well also. A lot of tools that use rectifiers for charging have issues. Makita comes to mind from work. Makita also makes the only battery pack I can't get apart to rebuild when the time comes.
Looking at the waveform from a modified sine wave inverter on a scope is interesting. It tends to pause momentarily at 0 when corssing from 120+ to 120- and I think that is how it better simulates a true sinewave. Really the best bet is to just try stuff. I'm yet to have a problem with any of my items in the bus, but I use an alkaline battery operated clock for instance as I don't want to chance a digital clock not keeping time because of the waveform difference it sees. You just have to be reasonable I guess.