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[ferp420]

your 400 watts charges rufly 20 amps a hour if you dont use any power its gonna take you 10 hours in perfict conditions to charge a 200 amp hour battery pack
that heat pump is gonna use up all your solar and not give ya much of a charge left over if conditions arent pefict your screwed
i would add more pannels and maybe another battery but you can do that when ever if you need to not a big deal
when it comes to solar conditions are almost never perfict and the batterys never last as long as you want them to

for refrance my house runs off of a 600 amphour battery bank i have 1800 watts of pannels and a 3500 watt inverter and a big back up generator

 

[Gula]

So according to amazons and the description of the AC unit it states 1020 watts, what does that mean to me? nada, The panels allegedly products ~5.5 Arm presses. Ok, maybe, I buys some more solar panels. (6)? The controller can take up to 150V Panel input. I planned on just glueing them shitts to the roof of the trailer, period? I have no fridge, and really, nothing that requires refrigeration. An ice maker, and ice chest/cooler for the dog. I also have a small 3000w generator.

Once I buy my land in TX and build my "LEGO" house from shipping containers,
That'll have a full on solar tracking system.

 

[89Industries]

If your ac unit is running on 12v dc power then your 200Ah batteries when fully charged would run the AC for a max 2 hrs 21 minutes on full blast (assuming I'm doing my math right, I'm an M.E. not E.E.)

If the AC unit is running off the inverter then the inverter will use some of that power and decrease the efficiency and you will get less run time.

I'm sure someone with even better info will come in on this.

My retired mother-in-law lives in a motorhome in far sw NM. She has about 400w of solar panels and lots of battery storage but they use the generator a lot. They do use other appliances sparingly and have a fridge but some of those things also run on propane.

They head to the mountains when it gets super hot in summer because they don't have enough power to run the AC enough to keep it comfortable in the desert.

 

[Gula]

Ok, so i just ordered 6 more panels, and 2 more batteries, giving me um, maths hard, like 120V of solar voltage and about 50+ Ampere of powah and 200Ahofmore to store for a total of 400Ah of storage for all I can afford this months.