4 ms·
>> this indicates that 80% is better than 100% > Better for what? 50% is better for long-term disconnected storage -- actually, voltage is better than % and fo
by user_7832 3y ago
>> this indicates that 80% is better than 100%
> Better for what? 50% is better for long-term disconnected storage -- actually, voltage is better than % and for storage you're aiming for 3.7v/cell (which is roughly 40-50%) which is where the discharge properties slow almost to a halt. 80% is the kind of standard "I'm not discharging this charge immediately"-recommended state (see: EV charging recommendations).
I meant better for the battery health in general, if kept permanently plugged in at that level. I agree 50% is likely much better than 80%, which is still better than 100%. It's just that very few OSes/software/BIOSes allow you to set it at 50 or 60%, while a few (like Apple) do fallback to 80% which is at least better than 100%.
Interestingly, I think my Framework BIOS allows me to set it at any value between 1 & 100%. I have set mine to a relatively "lower" 75%.
- Domenic_S 3y agoI charge my iPhone 13 pro (2021) with zero regard for battery health, and mostly via Qi, and iOS reports battery health at 89% which is much better than the expected -10%/year (I say expected because Apple will replace your battery if you lose 10% capacity within the first year). I charge my Tesla whenever, usually limiting to 90% but doing 100% maybe 10% of the time. 2021 model, Teslafi shows 8% capacity loss. Anecdotally I'm just not convinced that modern batteries with modern BMS need my micromanagement. Dealing with raw cells (18650s and the like) is a different story, but phones -- no way. But I'm not going to look down on someone if they feel passionate about it.