Webasto rooftop 13,000 BTU AC unit

[OffGrid]

I'm starting to plan for summer months and working on my project van. Now I have 300ah worth of batteries in 12V system. I can't find anywhere on their site how long batteries could power this AC unit. Or would I need to run it from AC if I wanted to run overnight?

 

[2021Bronco]

Hmm, it is a hard one to answer here and sadly I have no experience with this system. I think the best thing you can do is just power it at night while you are at home and check the status of the batteries the next day. You will get a good idea of how long they will last for.

 

[Richard Valladares]

You should check with Webasto on that one, don't they show total power requirements?