Based on early evidence, Xiaomi plans to pull a similar trick with the Poco F8 Ultra. According to PaperKing13, Xiaomi has already added battery capacity references for the global version of the Redmi K90 Pro Max to HyperOS 3. For context, Xiaomi equips the Chinese model with a 7,560 mAh battery for a 26% upgrade on the Redmi K80 Pro.
By contrast, the evidence presented indicates that Xiaomi will settle on a 6,500 mAh battery for its global counterpart with support for 100 W wired charging. On the one hand, this would represent a 23% improvement over the Poco F7 Ultra and its 5,300 mAh battery. On the other hand, a 6,500 mAh battery inside the Poco F8 Ultra would be a 14% decrease from the Redmi K90 Pro Max. Unfortunately, it remains to be seen when Xiaomi will launch the former globally.