this post was submitted on 10 Nov 2025
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No, its not. Deep battery discharge and high heat can reduce your battery lifespan more compared to charging to 100%. You only save a few percentage of battery health at most after 500 charge cycles. Modern day smartphones do not simply charge to 100%. They use multiple heuristics and algorithms to only charge to 100% when necessary.
Anyway, if you really want maximum battery health. Charge from 20%-80%. But,, You would in effect be artificially limiting yourself to 60% and be frequently connected to the charger. Also, you would be micromanaging the tech and, not lettin tech do things for you.
Here's an awesome video by HTX studios who did a battery test for 2yrs: https://youtu.be/kLS5Cg_yNdM
Most phones should have a setting to stop charging at 80%. My last 3 phones did at least.
Yes, you can limit charging to 80%. Many phones have this feature. But, it still feels like micromanaging tech. Not letting it drop below 20%, being limited to 60% capacity.
I dont particularly watch out for charging before 20, most of the time I just charge it whenever, between 30 and 50 most of the time. Also most phones have a notification when going below 20. Its limiting, yes, but no need for micromanaging if you dont want to.
Anyway, everyone can do what feels right for them.