Apex300 AC Output Shutoff

Product Discussion BLUETTI Apex & AC Series
1

I am experiencing an issue with my Apex 300 where the AC output would unexpectedly shut off.
This happened 2x to me. And each time, the device is plugged into the grid, performing grid pass-through power on about 70w of AC load, while also charging with solar (400-600w). It would charge normally, and the SOC would increase much faster than expected, hit 100% and then the AC output would shut off. I can go and press the AC output back on manually and it appear to work OK. A few days later, it happened again, charging using solar while plugged into the grid, SOC increase normally then rapidly increase, hit 100% SOC and then AC powers off. Has anyone seen this?
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My firmware situation:
IoT v8026.12
ARM v2204.11
DSP v2174.11
BMS v1073.07

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2

Thank you for your message! To help troubleshoot your device, please check the following:

  1. Is the machine charging normally or powering a device? Is the ECO mode turned on?
  2. If the machine is not charging and both AC and DC are off, it will automatically shut down after a period of time to save power.
  3. If ECO mode is enabled and there are no devices connected or the load is too low, the AC and DC outputs will automatically turn off after 1 to 4 hours (the specific time can be set in the app), and the machine will then shut down after some time.
  4. If the machine is only charging via PV and both AC and DC are off, charging will stop at night, and the machine will automatically shut down after a while. It will reactivate when PV charging starts again the next morning.
  5. Is the machine out of battery? If it is, it will automatically shut down.
  6. Please check the error code interface for any historical error codes.

If you have any questions or need further assistance, feel free to reach out!

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3

The issue here isn’t that the Apex300 turned off, it stays on, but the AC output turned off unexpectedly. Eco mode is off. The Apex300 is powering AC load of about 70w both times this happened. Grid is plugged in and solar is charging it at around 500w with bright sunshine, SOC is increasing and rapidly increases to 100% and then the AC output shut off (the machine is still on). You can see what happened in the graph above. There is no error code in the history. This happened 2x under the same circumstances.

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4

I apologize for misunderstanding your issue. Thank you for the clarification.

Could you please provide the SN code and firmware version information? I will register this and arrange for a firmware update for you.

Looking forward to your response!

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5

Any chance your unit is plugged into a GFCI outlet?

I had a similar issue, but not exactly the same…when doing pass-through, if AC load is on, the unit drops the grid charging, but AC Load stays on. Wondering if your issue is tied to something in the sequence of how the software troubleshoots - yours drops the AC Load, mine seem to trip the GFCI switch (not the breaker’s though).

I attached a grounding cable, but that didn’t fix it. I then tried plugging the unit into a non-GFCI plug and that resolved my issue. So it’s an interim fix for the time being.

I’m hoping Bluetti can figure out why this is happening as I’m sure there are some who are running the unit (especially in a portable type set up) where they’d pull up, plug into an outdoor GFCI plug, and run into some head scratchers.

Good luck though! I hope they figure this one out and issue a fix for it. Seems we may be coming up with one off, nuanced issues.

6

No this isn’t plugged into a GFCI outlet, but the issue here isn’t that the grid input stopped, but that the AC output turned off on its own after it chargers to 100% using PV power while grid is also plugged in.

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7

Thanks Bluetti. My firmware setup is as follows:

IoT v8026.12
ARM v2204.11
DSP v2174.11
BMS v1073.07

What would the updated firmware do? Is there a know fix that is coming out soon and you would be able to push it to me sooner? Would getting this out interfere with future updates? Or I would continue to get updates when new versions come out?

8

Yeah, was just checking in case since I also wanted to see if the GFCI “issue” could be affecting someone else in a different way.

Appreciate the confirmation! Good luck with how they resolve this one for ya!

I got a response on my issue, and they said they recommend plugging a unit into a non-GFCI outlet since the Apex 300 (or possibly other Bluetti products) could trip a GFCI outlet.