Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Modern lithium ion batteries usually prefer the range of 40-80%. Staying for long periods of time at 100% or 1% will significantly reduce the lifespan of your battery.

Will going down to 1% every now and then hurt your battery? Not terribly but ... avoid it if you can.

 
Modern lithium ion batteries usually prefer the range of 40-80%. Staying for long periods of time at 100% or 1% will significantly reduce the lifespan of your battery.

Will going down to 1% every now and then hurt your battery? Not terribly but ... avoid it if you can.


Thank you.
 
  • Like
Reactions: BigMcGuire
The Batt Univ 808 article is excellent and covers the high stress factors well, but IMHO falls short covering the benefits of low SoC/voltage in daily use devices. IMHO, the ‘keep-it-over-40%’ comes from infrequent use devices and long-term storage recommendations where batts may eventually self-discharge below critical minimums, but that’s not a risk on a daily use devices like smartphones.

Supplement BU808 with THIS and THIS (smartphones use LCO/Lithium Cobalt Oxide).
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.