MudChucker wrote:
2 inverters, 500 watt pure sine, 1500 watt modified.
install 1500 watt and run 2 outlets up to kitchen for microwave and coffee pot kettle etc.
the reason:
given the amount of waste energy through inversion, I figured that a 500 would be good enough for an LED TV and what ever, for about 2 hours max....
the 1500 would only be powered up if I wanted to make coffee or run the nuke or fill the air bed for 2 minutes...
is 2 t105's enough ?
another question, has anyone wired up a switch or relay to swap the 110v from shore to inverter ? or is plugging in the norm ?
Your wiring plan is questionable. What do you mean by 'run 2 outlets'? Some folks like me, find it much easier to supply the coach's breaker panel directly. That way there's no messy wiring to be done.
As I'm sure you've read on this board, MWs don't do too well with MSW.
I think you're going to struggle with just 2 batts for any heavy loads like the MW.
Transfer switches are common.
I'd get a big PSW and be done with it. 'Waste energy thru inversion' is a common gripe, but your approach seems to be a lot of work and expensive, relative to installing two more batteries, which you're going to need anyway.