Quote:
Originally Posted by Bob Denman
Hi Guys!
So the Missus and I were in Walmart this morning, and I was kicking around in the automotive section... 
Low and behold... 
They have some stuff in there for RVs! 
I actually saw an inverter (1KW) on the shelf...
My question:
Since I've got two house batteries: would 1000 watts be sufficient, or should I look for something a bit larger for our Class C Outlaw?
Thanks! |
You don't size the inverter for the RV you size the inverter for what you want to run off of it.
First go through the appliances you have that you'd likely want to run off of the inverter and add up their watts. You won't find an inverter large enough to run the A/C so leave that out (and the microwave for that matter).
Once you have your total watt # look for an inverter of that size or a bit larger. You can also use the watts value to figure out the current draw from the battery (watts=volts*amps, thus 600watts of power draw would be 50 amps draw at 12V...keep in mind the inverter isn't 100% efficient so it will draw a bit more current than that).
You can then use the current value to figure out how long your existing batteries will last with that power draw.
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