Technical issue report — RFID UHF module interference causing BMS freeze on Elite 100 V2
Hello BLUETTI Technical Team,
I am writing to report a potentially widespread technical issue affecting BLUETTI Elite 100 V2 units operating in Ukraine, and to propose a specific solution.
Observed issue: Multiple Elite 100 V2 users in Ukraine are experiencing identical symptoms — the unit becomes completely unresponsive after being switched off, with no display, no sound, and no relay click. The unit occasionally recovers after several hours without any intervention.
Proposed root cause: The Elite 100 V2 contains an RFID UHF module operating at 865-868 MHz (EU frequency range), connected directly to the BMS board. Ukraine currently has intensive electronic warfare (EW) activity operating at high power levels (50-100W+) across various frequency ranges.
It is our theory that powerful RF interference on or near the 865-868 MHz band induces parasitic current through the RFID antenna into the BMS board. This interference appears to cause BMS freeze specifically during power-on/power-off transitions, when the BMS is most vulnerable to unexpected input signals.
This would explain:
- Why the issue is reproducible and widespread in Ukraine but not reported in other countries
- Why the unit occasionally recovers on its own after several hours
- Why the trigger is always the act of switching the unit off
- Why remote BMS reset does not provide a permanent fix
Proposed solution: We kindly request that BLUETTI engineers investigate this theory and consider implementing a firmware update that allows users to disable the RFID module via the BLUETTI app. This would be particularly valuable for users operating in high RF interference environments such as active conflict zones.
Disabling the RFID module would not affect any user-facing functionality, as this module serves logistical purposes only and is not required for normal operation of the power station.
My case details: Serial number: EL100V22545111478467 Support ticket: #467999 Location: Ukraine Firmware: v2186 (latest)
I am happy to assist with any testing or provide additional information if needed.
Thank you for your attention to this matter.
Best regards. @BLUETTI_CARE