Brokkr

Because the 3rd panel looks better when you have dozens of physical properties to track. It also makes retrieval easier because you can get all the physical properties at once, instead of having to read every line.

For an example that small it doesn’t matter, but for something larger it could become a performance benefit.

As stated by another user, Wh is not a good metric for batteries because it will change depending on the load (voltage and current).

mAh is a strange unit, but it is the amount of stored charge (as in Coulombs) which does not depend on the load, so it makes sense to rate the capacity by this metric.