02-20-2017 11:12 AM
Battery aging also depends on time, and the actual vendor of the cells (or at least it used to before, when the cells can be Sanyo/Panasonic/.../ some other vendor, which all age differently), temperature, and many other factors. Mine went from 96Wh to 77Wh over a year and ~180 cycles, and it's pretty much in line with other Lenovo laptops I've used.
However, counting battery cycles, and taking special care, is counter-productive, as it is a wear-and-tear item. Indeed, if a battery is non-replaceable, worse yet if the laptop can't be even disassembled w/o special tools (like MS Surface, for example), degradation of battery performance effectively limits the usefulness of the whole $1000+ device. Luckily, P70/P50 Lenovo Workstations are still with replaceable battery, so all these worries are really over $80 worth piece of hardware.
Just use it, and replace when the battery life becomes unacceptable.