We’re glad you found it helpful! Well, if you want to power your mini split A/C unit with solar panels, you will need a 3000-watt inverter, at least 600 Ah of lithium-ion batteries, and approximately 1200 watts of solar panels. And that probably wont power you for 24 hours running a mini-spit. You would be better off investing in a generator to save money on such a large solar set-up. But, to power everything else, 800 watts of solar panels is great, 400 amp hours of lithium-ion batteries (such as the Battle Born or Renogy brands), and a pure sine wave inverter with 2500-3000 watts of continuous power output (such as the Victron Energy MultiPlus) should definitely keep you powered for 24 hours!

I was thinking around 800 watts of solar. and two batteries.

I’m so glad you found it helpful! I was actually thinking of writing a post about the different A/C options for cargo trailer conversions, so I’m glad you brought it up! We chose the Senville Mini Split for our CTC because it offered a perfect combination of efficiency, compact size, and reliable cooling and heating capabilities.

One question I have, a recommendation on A/C units? We are especially concerned about keeping our cargo trailer cool in the summer.