[disconnected]

Anecdotal, but I have an Asus EEE from aeons ago (2010, I think?) that still has about 60%-70% battery health, which is not bad, considering that this little guy was brutally abused throughout its existence (it was my main PC in University).

I also have a first generation Moto G (~2014) and an app I have here (OS Monitor) reports 70% battery health. In practical terms, the battery lasts a day of normal usage.

On the other hand, I have a ~2 year old Toshiba, and Linux here is reporting 0% battery health and a "last full capacity" of 0 mAh. If I unplug it, it goes under in 5-10 minutes (factory battery life was about 2:30 hours).

I read that the biggest battery killer is heat, not charge/discharge cycles.

Regardless, and if I am not mistaken, that figure of 1000 charge cycles is for cycles of 100% discharge (or as close as you can get before the protection circuits cut in) followed by 100% charge. This rarely happens in the "real world" and thus that figure will probably be much higher when adjusted for real world conditions.