Asus has proven since 2020 beginning with the Zeyphrus G14 GA401 that a 76Wh of battery capacity can fit into 14-inch, 1.7kg laptops with discreet Nvidia/AMD GPUs and Lenovo has proven this month with the Thinkbook 13x G4 that even slightly smaller 1.2kg, 13-inch laptops can squeeze in a similar 74Wh of capacity. And the recent introduction of the CAMM2 upgradable RAM standard for LPDDR5-6400 and LPDDR5X-8533 from inaugural market entrants Micron with their modules and Lenovo with their ThinkPad P1 Gen7 seems like it could soon spell doing away with the need to allocate motherboard space for SODIMM slots in high-end laptops altogether.
Thus, I hope and would very much like to believe that we will soon see batteries with 15-20% larger capacities of 85-90Wh in 14-inch laptop SKUs while only sprinkling on a corresponding slight 20% or 0.24kg/0.5lb of weight increase up to 1.44kg or 3.2 pounds.