I think there’s something wrong with my AC200 system. I cannot charge with PV, no power comes through. If I choose car, then it will send power in small bursts 20 watts here, 30 watts there.
I’ve used multiple panels including the 120w & 200w panels from Bluetti, but nothing…
https://www.bluetti.com/products/bluetti-sp200-200w-solar-panel
What am I doing wrong, or do I have a faulty MPPT controller?
No, you need more then 1 panel… get another panel and line them up in series to get above the 35v minimum requirement. 
The comment above about multiple panels in series is correct. From what I’ve found online hooking a 120 and 200 watt panel in series will only net you 240 watts not 320watts. The voltage however will be higher allowing you solar charging but you won’t be getting the full power out of the 200 watt. I could be wrong so if someone wants to correct me please do.
I heard that Bluetti doesn’t recommend mixing wattages. I do have 3 200 watt panels but I thought 1 would be sufficient for testing purposes. I’ll try at first light, I’m eager to get charging
Oh dude you’ll be set! Let us know how it works out
35v minimum required. 1 x panel regardless of watts will not work unless it provides 35v not to be confused with watts.
At home, I have 2 x 180W - 36V solar panels. Most panels are ???wats - 12V - this means you will need to have 3 panels at 12V to make the MPPT in the AC200P to work.
Hope that helps you.
The specs on the panels is 19.8, so 2 is sufficient.
Well it worked great! 3 panels I was getting between 400-500 watts. Charged it from 19% up to 100% in about 6 hours or so.
I thought something was broken because I missed that 35v part. Honestly I was probably thinking watts, and going 200 > 35