Did you know: the reason you can't seem to buy a laptop with more than 100Wh battery capacity, is that 100Wh is the maximum battery capacity permitted by various air travel regulations and so every manufacturer sets this as a hard design limit for all of their models regardless of whether the laptop will ever actually be brought onto a plane or not
@korenchkin I did buy a laptop somewhat recently-ish (couple years ago) with almost the full 100Wh battery capacity; it was a new x270 with internal battery and the extended external battery option. So dual-battery (hotswappable) and it totalled up to something like 96Wh.
I did get that laptop specifically for its absurd power efficiency; I can easily use it a whole day at a conference without charging even once.
@joepie91 yeah, I'm currently using an x260, but it seems they don't really make them like this anymore