Mudi 7 (GL-E5800) Battery/Boot Issue – False 100% reading causing premature shutdown

Hi everyone,

Before opening an official support ticket, I wanted to check if anyone else has experienced this issue with the Mudi 7 (GL-E5800) or if there is a known fix/workaround.

Occasionally, the device exhibits the following behavior:

  1. I use the router on battery and drain it down to around 46% (or a similar mid-range value), then power it off.

  2. When I try to power it back on, the device falsely reports the battery level at 100%.

  3. It starts the boot process but shuts down completely just a few seconds later.

The Workaround: The only way I have found to get it to boot is by plugging it into the power supply. Once connected to external power, it boots up normally. After it has booted, I can disconnect the power cable, and the router continues to work perfectly on battery. At this point, it correctly displays the actual battery percentage (e.g., the 46% it had before shutting down) and discharges normally.

Has anyone encountered this battery calibration or boot issue? I'd like to know if this is a known firmware bug that can be fixed via an update, or if I should consider this a hardware defect and proceed with opening a ticket.

Currently running firmware v4.0

Thanks in advance for any insights.

1 Like

There is another thread on this. Display % don’t match what the logs say it is