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I would especially love an app where you could customize the percentage at which point the app will send a notification (for example, 80%). I looked at some battery apps I found on AppStore, but none of them had this feature. The reason I'd like to have this feature is I want to unplug the charger before the battery hits 100%. Or at the very least, know when I have hit 100%. I don't want to have the phone plugged any more than necessary since that will cause damage to the battery.

I read that the optimal range (for the battery in the long run) would be somewhere around 70% and 80%, i.e. you would try to keep the battery percentage in that interval at all times. It would be easier to maintain this if my phone sent me a notification whenever I reached one of the two points, as I can't use all my time checking the battery.

Does such an app exist?

EDIT: I don't have a MacBook. I'm looking for an app for iPhone.

  • I put my phone on to charge at night and it is at 100% in the morning. Not sure how long it has been at 100% for each morning but it seems fine for an iPhone 6s+ that I have used for about 3 years now... – Solar Mike Jan 9 at 12:46
  • medium.com/s/how-batteries-work/why-batteries-die-d8281e15f6c8 Source for the 70%-80% claim. I did the same for many years, but when I read this article, I stopped doing that. I have an even older iPhone than yours and I intend to use it as long as possible for environmental reasons. I also live in a place where cold winters really deteriorate battery durability. – Adelia Jan 9 at 15:16
  • Hmm, no mention of the various parts of charging cycles that tend to be a now standard part of the charging strategy for most, if not all, electronic devices - even Tesla which they do mention. A half-assed pseudo-scientific article IMHO... And yes, I have cold winters too... 5 years for my car battery on average and it's not a small battery as it is diesel (I know fuel of Satan...) – Solar Mike Jan 9 at 15:19
  • I too have been charging my phone but in reverse to @Solar Mike. I charged my iPhone 6 every morning and unplugged it every night. I have been doing this for years. I bought my iPhone 6 new, The battery was replaced once due to the universal recall they had a few years ago. This was not due to problems and was just a precautionary measure. My iPhone worked fine for years. – jmh Jan 9 at 15:25
  • A terminal command to get battery status is mentioned in this answer: apple.stackexchange.com/a/206866/237687 then make an applescript... – Solar Mike Jan 9 at 15:34
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There is an app called Coconut Battery that does this but it is hardwired for certain values all less than 50%. There is also a setting for number of minutes left. Load the app and go to Preferences under the coconutBattery menu item. This opens a panel and one option is Notifications. See image below.

enter image description here

CoconutBattery is free but there is a Pro version for $9.99. This will also report on iOS devices connected to your computer.

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  • Oh, this would've been great. I briefly skimmed the page and thought I could download it on my Windows PC, but yeah, can't. I edited the question to say I don't have a Mac. – Adelia Jan 9 at 16:09

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