Track: the charge_[start|stop]_threshold will not work when charge_type != "custom"
Dell submitted the patch about the charge type.
https://lore.kernel.org/platform-driver-x86/c11ba6f5-5e7d-463d-9b1a-d2e56de21af9@gmx.de/
If the charge_type is custom
and the charge type in the BIOS setting is not custom
, the charge threshold settings will be ignored by upower.