Alternative to D22882.
Our use of "capacity" to refer to how much of a battery's original capacity remains is
confusing. This is made less confusing by inverting the number and referring to it as
"degradation". "Capacity degradation: 21%" communicates that the battery has lost
21% of its original capacity far better than "Capacity: 79%" does, because the latter
is easily confused with the battery's current charge level.
To further reduce the confusion, the battery's degradation level is relocated to end
of the Battery section.