Power Draw In Eco Mode vs Boost Mode On The Velit Offgrid RV AC Unit 48V

Published 08/19/2025

Question:

What’s the power draw in Eco mode vs Boost mode? wondering how efficient it will be at 10,000 btu and how long it lasts on batteries alone. thanks.

asked by: Jordan

Expert Reply:

Jordan, The Velit 2000R RV AC kit # VE99QV has an Eco mode that consumes just 250–300 watts, and Boost mode consumes 400–650 watts. That range makes it very manageable for off-grid use, especially when used with solar setups. Compare that to a 13.5k BTU RV AC pulling 1,500–2,000 watts, you’ll see why vanlifers like these. And you will still get plenty of cold air moving through.

With a battery bank of 4 12v 100ah batteries as an example, you can expect around 4-10 hours on boost mode depending on battery type, or around 9-15 hours on eco mode depending on battery type (lithium will give more run time)

What size solar panel are you running now, if you are using any?

Other readers - share your real-world runtimes with similar setups!

expert reply by: Andrew N