Tracker brownout protection

I found this variable in the tracker source code (tracker.cpp):

constexpr int TrackerLowBatteryCutoff = 2; // percent of battery charge

Is this variable the one I can change to, let's say, 10 and then at 10% the tracker will go to sleep?

I can see this function uses that variable and is executed in the void Tracker::loop() function:

evaluateBatteryCharge();

It would even send a low batt warning?

TrackerLowBatteryWarning

I could not find docs to configure or use this feature.
Thanks!

Maybe @eberseth you have some knowledge in the area? Thanks