Hi @rj2000 , please provide your AC200MAX SN code and are you using US 120V?
After we get your SN code, we will first have our engineers push you a firmware update. You update and reboot, then load other devices and try again
Hi, thanks for the support.
The SN code is 2236000180141
Please let me know when I have to act
@rj2000 , Our technical engineers have pushed the update for you (AC200MAX US 120V), please open the app and update it.
Hi, I installed the firmware update.
The difference between external meter and display of the AC200max is still approx 70w (external meter 100w vs AC200max 170w)
I’m using EU 230V
… maybe I received a wrong firmware update. I have the EU 230V version, not the US 120V.
After confirming with the engineer, the BMS version is compatible with either 120V or 230V. What is the load you are connecting? Suggest connecting another large loads to try
I run home office equipment via the AC200max. Mulitple PCs (iMac, Windows and a Notebook with Montitor), adding up to approx 120w in total (measured by the separate meter) . The AC200max is showing around 190w for this load. So it seems like that the AC conversion consumes additional 70w.
Is this within expected range for this device?
I have the same issue with incorrect actual power consumption display. I have EU 230V version with serial 2234002000139
ARM 4008.03
DSP 4005.07
BMS 1017.02
The load you are connected seems low, and may be connected to a large load to be able to display properly. You can try to connect a 600W or more.
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Thanks for providing the SN code. You are expected to receive a push notification of the firmware update within 24 hours.
Please keep an eye on the app and keep it updated at that time, thank you!
Why do the firmware updates not come down automatically through the app and have to be sent individually ?
Also is there a list of the latest firmware versions that each device should be on ?
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Hi,
I also run my home office with 115W and my AC200MAX use 180-200W.
EU230V
2233001125193
ARM 4008.03
DSP 4005.07
BMS 1017.02
HM1 6037.03
Got it start observing lower numbers of actual consumption. Can see not only 90W but 70’s as well
It seems that the AC200 max AC output reading is in VA (volt-amps), not watts. If you put a resistive load like a heater or hair dryer on it should read pretty accurately. If the devices you are feeding have a low power factor the consumption will appear higher on the Bluetti screen. Feeding the small loads you mentioned continuously will be very inefficient. I have found the self consumption to be just under 70 watts during 24 hour (watt in - watt out) tests with small loads. Neither my AC300 or 200 max read ac loads below 50 watts consistently, but they are pretty good above that, but again, the reading is in VA, not watts.
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I have a Bluetti AC200MAX power station and the app said that the firmware had an upgrade. I tried doing it and it comes up with a BMS communication error #34. The orginal firmware has been wiped out and now states its version 0.00. The battery is listed as standby and the battery percentage reads 0% (was 71% before trying upgrade). To me there is a bug in the upgrade. I would settle for any version that allows me to run my unit.
Thank you
Larry Moore
Good evening. My SN is 2241000702773. Can you send me the latest update please of how can i check if I have the latest one? Thank you. Jan
Hi @jan1 , welcome to community!
What is the specific problem with your AC200MAX please? Does the machine report any errors?
There is no need to update to the latest firmware if it works properly.
Hello, I have same issue with my ac200 max. It shows me ~+90 watt more on AC then it should (should have 20 watt got 107). With bigger values everything seems to be better (differences are smaller). Should I get firmware update? Arm 4008, 05 Dsp 4005,07 bms 1017,03. 230volt version. I think this is my serial number ac200m2309000095983?
@Darek I’m sorry there is no suitable firmware for your case. The power meter displays active power, while the AC200MAX displays apparent power. The Power Factor (PF value) of the load-side appliance will cause this difference.
Hi! I have the same issue. Actual consumption is ~70W less than the device shows. Also I try to upgrade BMS from v1017.02 to v1017.03, but it fails. Please help! Thanks