Confused about battery health
What does the green dots/symbols, mean on the graph for your battery levee? I've always been wondering what are the green dots mean. If anybody know what they are please let me know thanks!
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Charging to 100% is not “bad”. Leaving a battery at 100% for a long time can reduce its life somewhat, but, as the phone is always using energy it doesn’t stay there for long. Trying to micromanage the battery doesn’t do anything useful.
The absolute best way to get maximum use on a charge, as well as slow the decline of battery capacity long term is to enable Optimized Battery Charging (Settings/Battery/Battery Health) and charge the device overnight, every night. The battery will fast charge to 80%, then pause. During the nighttime pause the phone will use mains power instead of battery power, allowing the battery to “rest”, and thus reducing the need to charge the battery quite as often. The phone will resume charging to reach 100% when you are ready to use your phone; it will “learn” your usage pattern. If you enable iCloud Backup (Settings/[your name]/iCloud - iCloud Backup) the phone will back up overnight also, assuring that you can never lose more than the current day’s updates.