Hacker News new | past | comments | ask | show | jobs | submit login
How to Prolong Lithium-Based Batteries (batteryuniversity.com)
16 points by cpncrunch 4 days ago | hide | past | web | favorite | 8 comments






Note that there is quite a bit of content that was created long after 2010 (e.g. the Nissan Leaf case), and the article was last updated in 2019, so the "(2010)" addition to the title seems incorrect.

Ok, I've taken 2010 out. It's always hard to know how to date old articles that have subsequently been updated.

the part about it being okay to keep laptops plugged in at 100% seems exact opposite of the data it showed.

Not really given the explanation the article gives after the claim.

Sustained at more voltage = more degradation. There no way around that according to their own graphs.

To put some number on it, my Mac has been plugged in 100% for a few hours and is at 12.951V or 4.32V per cell which is very high and the graphs show it will degrade quickly at that voltage. So even with this feature, I'm still negatively affected by keeping it plugged in.

For the record, my Mac is at 6553mAh of 6871mAh which is really 95% which implies the feature is on and active and still at 4.32V!


Isn’t this a bit outdated?

It was last updated in 2019.



Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact

Search: