James aka CoolJimmy writes...
I've been running tlp on my T480 since i got it 2 + years ago, with a start charge at 50% and stop at 80%. I have the internal battery at 97.8% and external battery at 98.4% capacity.
Also before leaving to go to site i run 'sudo tlp fullcharge'
I hope to make another mumble chat soon, in the 7+ years of listening i've only managed to make one.