I've watched the sony vaio ultracrap using the installed up-to-date 19.10 system, but have not noticed any issues with battery condition drop. The device mostly sits unused with occasional checks of battery status, or less occasional use as I dislike the keyboard+touchpad.

my lubuntu iso was updating (19.10 daily now) so booted
https://cdimage.debian.org/mirror/cdimage/weekly-live-builds/amd64/iso-hybrid/debian-live-testing-amd64-lxqt.iso [2019-04-22 06:17] on my lenovo thinkpad sl510 (c2d-t6570, 2gb ram, i915), it showed battery at 38% and [somewhat slowly] dropping as I played .. 37% .. 36% (I also had 'battery.info' screen open as it's easier to read), then i closed the battery.info window, and it seemed to stay at 36% for longer than I expected, ... then after a long while I noticed the change to red battery and it was 9% -- i don't believe it was me forgetting to watch battery drop.. (but it could be battery.health issue or yes i lost-track-of-time..)