How big of an inverter would be required to start a 15k btu a/c? I'm not interested in the 12v supply debate, just need to know how many Watts to start the unit. 2500 continuous/5000 surge?
2500/5000 would do it easily, the trouble being that any inverter you see advertised as 2500/5000 is almost certainly junk, and will never come anywhere near having that capacity. The units I have worked on that run air conditioners from inverters use 4K watt 24 volt inverters (along with water cooled alternators).
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,279 PostsLatest Activity: Jul 04, 2025