[fencepost]

I'm pretty sure the Tesla batteries are controlled to never actually go to 100% capacity when charging, and likely have a hard cutoff well before fully discharging as well. I wouldn't be surprised to hear that there are other active battery management techniques in place as well. IIRC, one of their options for higher power capacity is actually just a firmware setting on the same battery packs, which would also match up - pay more for higher capacity on the same hardware, with the extra $$ paying for the increased wear and tear on warrantied components.

One thing you can do with some laptops is adjust settings to extend battery lifespan. Lenovo ThinkPads have settings in the power management software to set the maximum charge level as well as a range where it won't start charging (this is also available in their Windows 10 Lenovo Settings app, though I believe it wasn't present for the first few months of Windows 10). I set ThinkPads to not charge above 85% and to not start charging unless the charge level is below 75%.

Some other Lenovo laptops (e.g. Yoga 2 Pro ultrabook) have a similar but less-functional setting called "conservation mode" that in my experience caps the battery charge at 55-65%. The chosen values on those seem too low to me since my reading indicated that most of the benefit from capped charges is at the very high end, but that's what you get with consumer-grade equipment.

I'm pretty sure I've seen similar battery control options on other laptops, but I couldn't tell you which manufacturers support it without research.

Edit: Samsung calls this "Battery Life Extender." Lenovo (Win7) has it in Power Manager, Advanced mode, Battery, Battery Maintenance. ThinkPads (Win10) have it in Lenovo Settings, Battery, Battery Charge Threshold. Non-ThinkPads (Win10) have it in the same place, but as Conservation Mode. Some Dells (at least under Win7) have an option in Dell Quickset to "Turn off battery charging" until the next power cycle, but that's a manual process and more to prevent lots of small power cycles.

[fencepost]

Note: my thoughts on Tesla capacity were in fact way off - they are physically distinct units.