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.
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.