Issue with Low Grid Voltage in Ukraine Preventing AC Charging

[Pho]

Hi @BLUETTI

I left a request for DSP update on Saturday, 24.01.2026 through the questionnaire form above. Today I’ve noticed that my SN could get letter ‘O’ instead of digit ‘0’ in it, so I’ve posted another form response.

Just in case, I’ll repeat it here:

Model: AC180P
SN: AC180P2342000067058
DSP: v2088.03
ARM: v2089.04

Could you please check if the update was sent to my app?

Thanks in advance,
Volodymyr

[BLUETTI]

Hello, we have registered you for the new firmware update, but it hasn’t been pushed out yet. Please wait patiently.

[RADRSK]

Hello everyone, I contacted the link provided on Monday, but they still haven’t sent the firmware. Can you tell me when I can expect it?
AC2P2443001906412, DSP V.2136.01

[VladyslavBr]

Dear @BLUETTI team,
Any news on my device EB3A2246001962012 ?
Thank you in advance.

[Pho]

Greetings @BLUETTI

Thank you! Today I’ve received notification about new DSP update available. First 2088.03 → 2088.99 I uploaded the firmware successfully. Then I checked the app again and noticed the 2088.04 → 2088.99 update available, I also completed this update without errors (check screenshot below)

After the 2088.04->2088.99 update was done the notification about the available update does not disappear in the app even after I perdormed this update 2-3 times. The app still says the update is available.

I forced Bluetti app to stop and reopened it, it still says that DSP update is available, as before.

Is there a way to validate if DSP 2088.99 was in fact successfully flashed to my station?

[seregik_dp]

Hi @BLUETTI,
I have the same problem: E114 Grid Voltage Low
All updates installed. The app is also updated.
I filled out my information in the form on this forum.
AC200L
DSP v2130.13
AC200L2539110096729

But why I can’t set the “Under-voltage Settings” parameters on “Advanced Settings”"Grid Self-adaption" page myself? These settings are not saved.

I have another AC200L and these settings work there.

Thank you!

[VladyslavBr]

Hello, @BLUETTI @BLUETTI_CARE teams,
I see a new firmware version v2052.51 in the application.
However, I am not sure if this is the version that will solve the low voltage issue in my EB3A2246001962012 device. Or should I wait for another version?
I look forward to your reply.
Thank you.

[imar4ok]

UNRESOLVED
Had the same problem for a few days(Error A082 - Grid Voltage Low). First 30 min to an hour after the restoration of electicity the EB3A won’t charge dut to low voltage(180-190) then the system stabilises to 197-205 and it starts charging. Right now facing another Error A049 - BUS Overvoltage, the unit charges for 5 seconds then drops to 0w and it goes in circles(in silent mode as well). The power station have stopped charging at all. Is there a software or diy fix for this?

[BLUETTI]

Hello, this is a firmware upgrade for low-voltage power grids. You can upgrade.

[BLUETTI]

Hello, did this issue only appear after you upgraded to DSP v2130.13? Was it possible to configure before?

[BLUETTI]

Hello, is the low voltage error still being reported?

[seregik_dp]

When I bought it, this version was already installed. No updates were installed by me, everything was up to date.

If needed, below are details about the versions and behavior of the application/station:

Summary

AC200L2539110096729
IoT2537112121426
IOT v9041.11
ARM v2131.05
DSP v2130.13
BMS v1043.13
App v3.0.4
I also compared versions with the station where everything works correctly(AC200L2423001216700 IoT2423001066595), and found one difference. It has IOT v9041.10
Both stations are up to date.

My actions:

1. Open “Settings”"Advanced Settings""Grid Self-adaptation"
   
   
2. Tap on “Grid UV Protection”, open such page:
   
   
3. Enter value, for example 80%
   
   
4. Tap on button “Set Up”
   App thinking…
   
   
5. But doesn’t save new value
   
   

Thank you!

[Andrii_D]

Hello,
I have submitted my information, please provide me software.
Thank.

[Ihor1]

Hello, the same problev with lower voltage. Thanks
Forum User Name Ihor1
Model EB3A
DSP Firmware Version v2052.11
Serial Number EB3A2310001190422
Grid Voltage 175-180

[BLUETTI]

Hello, please fill out the information in the form above, and we will process it accordingly.

[BLUETTI]

Hello, please fill out the information in the form above, and we will process it accordingly.

[Andrii_D]

Hello,
I filled out the form yesterday, did it again.
I’ll copy it here too.
Andrii_D
Model AC180P
DSP Firmware Version v2088.04
Serial Number AC180P2352000149900
Grid Voltage 175-180

[BLUETTI]

Thank you for your feedback. Here is the information regarding your concerns:

1. The nominal voltage for this model is 230V, and 120V is far below the safety threshold, which may prevent normal charging and operation. We have added a grid adaptive mode to widen the input range.
2. In the event of voltage fluctuations, the AC300 can momentarily tolerate changes within the protection threshold; exceeding this will result in switching to UPS power. Frequent fluctuations can cause repeated starts and stops, affecting charging efficiency and user experience. Short-term compliant fluctuations typically pose no direct danger; however, if exceeded frequently, they can accelerate the aging of components like switches and capacitors.
3. The device will automatically reduce charging power to ensure the input current remains within a safe range, preventing overcurrent damage. Logically, as the voltage decreases, the charging power also decreases (within the protection threshold).
4. For the nominal 50Hz model, 49Hz is considered a normal deviation and will not cause damage within the device’s tolerance.
5. The upgraded firmware better adapts to the instability of generator power supply.

I hope this information helps address your concerns. If you have any further questions, please feel free to reach out.

[Andrii_D]

@BLUETTI Please provide me software as soon as possible, it is very important for me and my family.
Thanks for your understanding.

[BLUETTI]

Hello,

I have registered the firmware upgrade for you. Please be patient while we process this.

If you have any other questions, feel free to reach out.