It's not quite the same thing. For example, take table 3 from this link:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteriesIf the battery is kept at around 30C because of the laptop heat, that means that if it's not used at all, it will have about 75-80% of initial capacity after 1y.
That is if you keep it at 95-100% state of charge (as is the case here, i saw in another thread that the lower limit is 95%).
If you could reduce the charging thresholds to min 'a', max 'b', you'd have a depth of discharge b-a %. That means, by looking at table 2, that if b-a is about 25% (which would be a valid usecase if youre using the laptop while trying to get somewhere and then plug it back in) you'd get 6 times the number of discharges out of the battery. Which is more than the factor of 4x (that is 100%/25% if 25% is the discharge unit). It's obvious that these functions are not linear.
So the thing is, 'b' says how much your battery will last/live w/o heavy usage, and b-a says how many times you could use it. That's why i was asking for some way of being able to specify those 2 numbers.
