An LTT Labs video comparing the battery life of different configurations of Framework Laptops:
For Example - M.2 Drive Capacity, Amount for RAM, 8,16,32,64GB, Different expansion modules, Different Motherboards, etc.
Specifically the Ram I think would be very interesting. (Definitely not suggesting this because I need more RAM but am scared about battery life because mine is not great as is. Considering 32->64 GB)