3500w power inverter

blaczero wrote:


I get what you're saying. I'd like everything to be DC and not have to invert. I am buying a new RV in a couple weeks so I'll be kitting that one out with what you've listed (usb 5v stuff). For now, I do have some USB ports in my rig, but they're too low a wattage to charge my laptops unless I replaced them.

A few feet of 12ga wire to a new 12V cig/power port from either your batteries or your fuse block which ever is easiest to get to, would get you into using a universal 12V DC to laptop charger right now.

Much cheaper and easier than retrofitting your existing RV with a huge inverter not to mention which you are planning to make the existing RV go away anyways which means ripping out the inverter upgrade.

This would give you time to think out what you are going to do without committing to needless upgrades.

Unless you are planning to run the A/C from battery you can easily get away with a far smaller inverter..

Running a dehumidifier from inverter/battery is going to be a tall enough order.. Even the smallest (20 pint) compressor based dehumidifiers typically will draw 6A(1.1Amp for compressor and 4.9A for the fan)at 110V (roughly 700W). That would translate to roughly 60A at 12V, 24 hrs of that will mean you need 1440Ahrs worth of battery capacity to if you ran it continuous just for the dehumidifier alone.

If dehumidifier is your biggest load, then a 1200W inverter for it and a smaller 300W-400W inverter for small items like TV would basically all you need.

Putting all your eggs into one huge inverter basket in this case is not the most efficient way to go about this.