Hello, I have two 450watt panels in parallel with an open voltage of 47volts I’ve been using for 5 months to charge my Elite 200. All, was well until yesterday when it just stopped mid-afternoon. No alarms triggered. The display does show solar connected and yesterday clicked on and off every 10 seconds, but never pulls amperage or displays watts. Today no clicking when I tried it again. It does show 46 volts in the app and on my fluke. The panels do still work on another powerstation with the same cables. Everything else works normal on the Elite 200, just no solar amperage. I have a ticket into bluetti for a couple days but no response so I thought id check in here to see if anyone else experienced this after a few months of use. Thoughts?
Does a single panel work? Generally a parallel connection is fine and the MPPT controller will reject the remaining amps/current, but not all solar panels will 100% work. MPPT still has to negotiate the charge. Back off one panel and see if that works.
Yeah, I did try one panel. Still nothing. Also, I’m no where near 20 amps. At best its 12ish this time of year. The most I’ll see is 550watts for maybe a couple hours. Summer time it did +800watts regularly.
Temperature does play a factor with flow. Stupid question, but I’ll ask anyways, you did make sure the unit was charging ABOVE 32 F correct? It will refuse to charge below that. The BMS should protect the battery. You can discharge below freezing but cannot charge below freezing.
Yeah, it’s above 32.
Sounds like MPPT fault, but just curious does even a basic 12V car charger work? Assuming you have an XT60 to 12V adapter. I’ve heard of PV priority UPS mode causing issues switching between UPS and PV even though it should, it doesn’t. Supposedly there was a firmware update to fix that. If you are already in standard UPS mode this does not apply. If you are in PV Priority UPS, try switching to standard UPS. Power off the unit by holding button, waiting 30 seconds for information to store/capacitors to dissipate, then power it back on. Another thing is the battery won’t charge if it THINKS its at 100% but obviously you could test that by simply discharging the unit and the expected output would be charging as a result.
I don’t have an answer but want to join the conversation as I’m experiencing something similar.
I have an Elite 200 that has been running great for about a week. It has been pulling 800W through the XT60 connector without issue during the day then seamlessly switches over to mains at night (no solar, dead external rack battery). Today I checked it and am getting absolutely no solar input. It shows 52V and cycles between 1 and 2W but that’s it, no actual power goes into the unit. If I move the XT60 connector over to an ecoflow I have lying around it immediately accepts the solar input and starts charging. Move the cable back to the bluetti and nothing. If I stare at the app for a while the solar icon in the top left will go from green to grey then back to green, almost as if it’s cycling. My gut tells me the bluetti has failed.
For context I have 6 panels plugged into a victron charger which then plugs into bus bars. Both the bluetti and a fairly standard 48V 5.12KWh rack battery are also connected to the same bus bars. Generally the solar both runs the bluetti and charges the rack battery until the sun goes down, then the rack battery continues to power the bluetti until it dies, sun comes up, rinse and repeat.
A quick update, after calling Bluetti they have agreed to replace the unit. It appears the MPPT controller simply failed.