@BLUETTI_CARE After unplugging the DC7909, it takes 60 to 90 seconds for the PV input indicator on the screen to disappear. Is it possible to make the indicator disappear immediately?
Version is DSP v2077.07
@jack893 currently there is no new firmware for this problem. I will give feedback to our R&D department. If there is any update, I will let you know.
Hi, Is there a way to get old firmware installed?
I don’t want to unplug and plug my PV everyday to get AC180 charge.
The one that worked before this updated firmware. Thanks.
I built this device to deal with the AC180 firmware bug. It cuts power in the PV cable for 1 second every hour, which causes the unit to turn on and charge from solar. Should run for many months on a 9V battery. Hopefully, doesn’t take that long to get a firmware update.
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@LN2023 There is another firmware for fixing the problem of PV activation. Do you want to have a try? Or do you want to roll back to the old version? Kindly let me know your idea. Thank you.
@LN2023 Kindly check if you have received the firmware BMS1033.07 and I am looking formward to your update.
Thanks. Can you find out what is new in this firmware update? And have Bluetti checked this firmware out ? Thanks.
@LN2023 This new firmware is to solve the problem of PV charging not being able to activate automatically the next morning. We have tested it and some customers have tried it and it works. Please try it and let me know if it can fix the problem.
Ok, I will update to this new firmware.
hello. I would ask for the new firmware update as well. The unit data were uploaded already. Thank you.
Early this morning while the PV panels were still in the shade, the unit woke up (power button was green), 0 Watt input.
However I noticed last night that the bluetooth remained active while the power button was off (not green). Maybe because of this SOC dropped from 76% to 72% over night. Will update when I got more data.
Still in the shade and I got about 5-7 W coming in. Unit did not “wake” up under this condition of 7 W (in previous firmware). So this new firmware does work.
However it lost 46W (4%) overnight. I am sure this is excessive. I have a bluetooth (always on) LiPo battery and it lost about 1% (6.5W) when sitting alone over a period of 4 weeks.
I will collect more data and see if the old BMS firmware is more desirable. Thanks for your help.
Got to 100% SOC yesterday. Checked at 22:48, power button was still on and SOC 99%. An hour later it was at 98%. This morning it was 94% with 0 W coming in (still in the shade) power button was still green.
Yes. But now the new firmware drained 6% over night. I will collect more data and may revert back to old firmware. I’d rather manually activate it in the morning than having it drained out on cloudy, rainy days. Thanks for your help.
I found another problem. The app could not turn off the AC180. It could only be turned of by holding power button down.
Here is what I saw. LCD screen was off, solar panels covered (no power from sun). I used the app to turn unit off, LCD screen turned on, unit remained on.
I then notice the DC input indicator was on. I unplugged the DC input, the indicator remained on.
I tried the app to turn it off again, and the unit remained power on.
Please relay this data to your people.
Without PV panels plug in, the unit turned off sometime later. Bluetooth was still active, reporting SOC. App accepted command to turn on/off AC, DC. However, the unit remained off throughout this.
Turned on unit manually, DC input was not there (not like the day before). Plugged in PV and screen reported 3W coming in. However the app screen went gray. Exit out of app and it said unit was accessed 2 seconds ago with SOC of 0%.
Connected to AC180, now it functioned normally. Responded to AC, DC. But still would not turn off when commanded from app…
Hi, I would like to revert back to BMS of V1033.06. Thanks.
Hi. I’m having same problem as LN2023 in that the AC180 will not automatically resume solar power charging each morning, as one would expect with such a device. The unit appears to turn itself off during the night and will not charge. I have to manually press the power button or unplug/replug the solar cable to wake it back up and to resume solar power charging. So I would also like a firmware update. But is there a firmware update that doesn’t drain the unit 6% over night, as described by LN2023. Otherwise, I think we have a warranty claim issue here.
BTW, my unit also has the clicking sound issue in early morning as well (starts at dawn before sunrise), which is also only resolved by unplug/replug the solar cable. Perhaps these two issues are related?
Can we get a comprehensive firmware update to resolve these problems?
My serial number is AC1802328000437970
ARM v2073.04
DSP v2077.06
Thanks!
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