-Ac200L- UPS / AC input stops:
-I first noticed this intermittent problem while in STANDARD UPS MODE and while I am also charging with PV Input and an output charge is being applied, I would expect the flow through to cover the AC output and more but after a while the AC input just stops for no reason goes to “0” and the only way so far that I know how to get it restarted properly again is to turn off the AC control and then on again. This seems to re-connect up to my AC input power from Grid.
What is the cause of this, and what can be done about it.
-Something else that is strange and maybe related.
Over-night, I run in PV Priority, so as not to use any grid power, and on a few occasions all of a sudden the grid power will very briefly surge up words. I am running a few small appliances and have a low but steady drain on the battery.
This doesn’t seem to interrupt anything, but because I don’t think this is normal, I would like to know what causes it and is it OK or not.
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Thanks B
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Hi @Liberty, Based on your description, it sounds like you’ve chosen the PV priority mode. We would like to know what SOC (State of Charge) value you’ve set for your AC200L.
Additionally, what is the SOC value when the AC200L stops AC charging? Are the two values the same?
If they are, then this is a normal condition. When the AC200L is set to PV priority, it will only use AC charging when the battery level drops below the set SOC. If the battery level remains above the set value, AC charging will automatically stop, and it will wait for sunlight to recharge via solar power, which helps save on electricity costs.
Hello and thanks for getting back to me.
I run my battery as much as possible, and I do understand what you are talking about.
I charge the AC200L and 2 b300 batteries via solar during the day in PV Priority ( continually running a few appliances 24hrs a day ) with the SOC set at 40% (So if the battery level “SOC” were to drop to that level then I would continue receiving solar, but any output would be handled via the grid until I surpassed the SOC level of 40%)
When this problem happened, my battery level was between 85-90% full, as it was later in the day and was nearing completion.
Once the battery is full, I would switch the setting mode to STD UPS to save the battery and run through the grid.
So daylight I use PV Priority mostly, once full I would switch to STANDARD UPS to continue topping up the battery and running flow through. But once the sunlight is finished I switch the battery back to PV Priority and run it overnight that way so as not to take power from the grid.
But that’s not all:
While scanning through the Apps Daily Power Profile, I noticed a few anomalies like hi grid power spikes. These spikes would occur while in PV Priority. So why is that?
But that’s not all:
For a while now I was noticing that the calibration of the AC200L with the 2 B300 batteries was always way out of % range with each PACK, always the AC200L would be depleting first (i wasn’t so worried about that and once these first issues were fixed I was going to start fixing this problem with a few discharges and recharges etc).
Then I noticed the battery was in STNDARD UPS the soc was around 97% and there was no power coming in but power going out. I checked the SOC of the batteries and the AC200l was at 100% while the other 2 were down in the low 70’s%. I switched from STD UPS to PV and no change. Then I noticed that the display wasn’t showing any output either I had some small loads on and could check to see that they were in fact working, but no output showing with these small loads of 40w or less( I Did connect a vacuum cleaner and turned it on, and it showed a high usage, but after I unplugged it went back to showing 0).
So I could go on. I actually had a previous couple of problems and the most recent one about 3 weeks ago was similar, it had to do with the AC shutting down for no apparent reason with a fault code and some power issues pertaining to the AC suddenly turning off.
I was told to run a DSP update and switch the battery setting in Advanced Settings to Grid Self-Adaption which I did and since that time up until now things seemed better, and I actually just wrote back to Bluetti concerning that service ticket saying I had re-tested everything and was satisfied.
Then literally 3 hours later everything is in disarray.
Bottom line, I have turned my machine off now and will I be able to depend on this unit.
Luckily I can still use my AC200MAx
B
