All my POwer Inverters are located as close to my main battery 12VDC connector as i can get and still be inside my trailer (out of the weather)...
Then I can run an 120VAC Extension Cord with multiple sockets on it with an ON-OFF switch to any part of the trailer I need it. Most Power Inverters have two 120VAC sockets on them so I run one extension cord to to my home entertainment area and the second extension cord back to the bedroom table area. This is where I keep my cell phones and other items that need to be plugged in for charging etc...
I would suggest you purchase a PURE SINE WAVE type Power Inverter so that you never have to worry about what you are plugging into the Power Inverter... Several things may go up in blue smoke if you have a Modified Sine Wave Power Inverter unit. AMAZON sells a 600WATT Pure Sine Wave AIMS model Power Inverter for less than $150...
Roy Ken