Samlex PST -15S PSW Inverter

I've used a PST 150W for several years in a travel trailer and recommend the brand. Even Mex has 1 or 2 PST's. The PST series is one of the few that tolerate higher DC voltages (10.5 - 16.5 VDC / 21.0 - 33.0 VDC). Many other brands top out/turn off at 15 VDC. When charging batts, 15 can be easily exceeded when boondocking in colder climes.

I run the inverter to only 1 outlet for very limited use and have a Kill-A-Watt meter plugged in it to ensure I stay below 150W. Most RV's would benefit from a single 300w or larger to simplify wiring.