..Like I really ‘need’ another bright shiny interesting cool thing to learn about amongst all the other stuff I’m supposed to be doing 
).... This inverter stuff is actually pretty interesting once you start looking into it 
.Came across an interesting list from Invertersrus.com
“Some devices and appliances that require a pure sine inverter are:
Microwaves
Laser printers
Variable speed tools
Cordless tool battery chargers
Some TV’s
Key Machines
CPAP machines with humidifiers
Medical equipment
Sensitive electronics”
Not that we were planning on running a laser printer per-se but it appears this also applies to some inkjet printers as well.
The thing that caught attention was in the cordless too battery chargers which I kinda had thought of as something of an insensitive brick
but like a lot of things is more involved. Turns out cordless tool battery charger really doesn’t like a modified sine wave (a square wave “all/nothing”). That might explain why an acquaintance’s off grid cabin keeps “eating” 
his cordless tool chargers.
This is something that will affect or extended travel plans in that we have become quite
enamored with our Ryobi tools over the years. (Our Dads would’ve LOVED the convenience and practicality they offer not having to drag a power cord around... I’m still waiting on the flying cars but those are getting closer everyday. 
)But if/when we do our extended cruises the sine wave vs. square wave also applies to drones AC battery chargers and as was pointed out laptop chargers.
Again, Thanks for sharing!
You saved us from a lot of potential grief down the road as it were.
