What hardware are you using? If you have specific SKU or serial number, that is also helpful
M23000006V5
What version of software are you using? voxl-version is very helpful for determining software version.
Whatever is currently default, have not modified.
How have you configured the software? What is the output of voxl-inspect-services
Whatever is default, have not modified.

Have you looked at the source code? If so, can you point to any potential issues?
No.

When first setting up the drone, it was operational and could be flown. After some flying tests, I was looking at the available features in the voxl web interface and performed a system health check, which is attached. It was a failure (Battery_status: result = false, voltage_filtered_v = 0. The drone remained operational until 13/6/25, when it suddenly turned off and would not turn on again.
The next morning, I attached the freshly charged batteries and the drone came back to life for momentarily before all lights went off again. Since then, we have not been able to power on the drone at all.
I have tested both the batteries for voltage and they are within specification.