I’d agree that the most likely result of a battery calibration would be a possible, small improvement in the battery gauge's accuracy. But I don’t think it should be huge. If folks are getting really bizarre battery readings such as the gauge being stuck at 100% as you described, I’d wonder whether your battery requires service. If you go to http://getsupport.apple.com, you can run a diagnostic test to help determine this. Select “battery, power and charging” then select “general questions or troubleshooting” and follow the prompts to send some diagnostic data to Apple. A message should be displayed if the battery requires service based on the results of the diagnostic data. I saw strange battery readings on an iPhone 5S a while ago, ran the diagnostics, and was told my battery required service. I was then able to bring the phone to Apple and get a new battery, which was covered under my AppleCare Plus..
Grant On Oct 29, 2015, at 12:09 PM, Blee Blat <bleeb...@gmail.com> wrote: Yeah, I'm not a scholar of batteries either but over time if you don't run the battery down to 0% periodically you may find that the fuel gauge gets out of sync. So you can have a situation for example when your battery charge says 0% but the phone is still working, or you can have 30% charge and a powered off device. So that's what your calibrating is the charge readout probably not the battery itself. I think you could get into situations too where if the gauge on the battery is out of sync with the cells, it might attempt to charge an already filled battery unnecessarily, but I think there is a few other checks to prevent that from happening. I'm not sure what programmatically goes on in battery management firmware. It is probably slightly different for every firmware. I don't calibrate batteries regularly but I had to do that once because the phone and computer were showing weird battery numbers. I had them both showing 100% charge after a full 8 hours of heavy use. So maybe this clears up some things or if I'm misunderstanding something then we can find some decent answers and not get confused. I think battery firmware changes with every update too. Maybe this is related to the random reboots and failed sign-ins to icloud stuff after ios 9.1 updates, neither of which were fixed from a full restore from itunes but I don't know. But phone is very unhappy at the moment. -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at http://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout. -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at http://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout.
