Target sells 100w, 200w and 400w inverters in their stores in the automotive department. I was somewhat surprised. I bought the $19.95 100w for charging camera batteries, iPod, etc. and maybe my Mac laptop since it says 85w when without an electrical hookup. I haven't tried that yet.
2015 Advanced RV Ocean One Mercedes Benz Sprinter
Previous Class Bs:
2011 Great West Van Legend Sprinter
2005 Pleasure-way Plateau TS Sprinter