Hello, everyone!

I am having trouble with a strange phenomenon that I have encountered since yesterday.

What is the remaining % of the battery displayed in reference to?

I recently took over a project on a large aircraft and after flying for a while, the battery remaining in QGC remained at 100% and did not change.

I thought it was odd, so I looked at how the battery % remaining would change in two cases

- three 14-cell HV batteries monitored with MAUCH’s Power Monitor

This is completely correct wiring. - two 14-cell HV batteries monitored with CUAV’s Digital CAN PMU SE

This is correct for voltage, but monitors the current flowing to the receiver. The person who connected them is not very familiar with electricity.

The test was done using a stabilized power supply and verified that the battery voltage is correct in both cases.

When the voltage was varied from 60V to 50V in these two cases, the remaining battery life was displayed as almost 100%.

We did some experiments here.

- I checked the voltage at which the remaining battery percentage begins to decrease.

This was 52V. - Using the MAUCH Power Monitor, I set the battery capacity to 200 and checked the remaining % change.

It decreased in order from 100% to 0%.

If anyone has the same problem and has solved it, please let me know the solution.

Also, if you know of any places I should check, please let me know.

Best regards

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