How much power does an inverter use?
In our Casita travel trailer, I have one 12V outlet. I have two inexpensive inverters (Walmart) that plug into the 12V outlet: one inverter is 100W, the other 400W. My laptop needs 90W to charge. ...
Forum Discussion
jornvango wrote:
Am I correct to assume that the 400W inverter will only draw down the RV battery based on what I plug into it?
Jorn
Since nobody answered your actual question, Yes, the inverter will only draw from the batter what is needed - plus it's "dead" load.
The 400w probably larger dead load than the 100w, but that is not certain and would depend on efficiencies.
And as others have pointed out, the ratings are peak, but so is the 90w charger.
