E13
Mini Internal Real-Time Clock (RTC) / Time Sync Error

Charger shows E13; scheduled charging and smart features fail; local manual start may still work

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Possible Causes

RTC battery failure on main PCB, Firmware bug affecting timekeeping, Loss of NTP time synchronization due to network issues, Faulty RTC chip on Mini charger control board

How to Fix / Troubleshooting

Note: This affects scheduling and logs more than basic charging.

  • Check network time: Ensure the charger has internet access (via Wi‑Fi/Ethernet) so it can sync time from NTP servers.
  • Manually set time: If the Mini app or web interface allows, manually set the correct date and time and save settings.
  • Firmware update: Update the charger firmware to the latest version to correct known RTC issues.
  • Technician inspection: If E13 persists, the RTC battery or chip on the main PCB may have failed and the board may need replacement.

Until resolved, avoid relying on scheduled charging; start and stop sessions manually.

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Repair Difficulty

Easy 2/5

Required Part

Mini EV Charger Main Control Board (RTC Section)
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