this post was submitted on 10 Nov 2025
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Yes.
Simplified and probably inaccurate explanation: 100% & 0% wears at the "membrane' that keeps the two energy compounds apart. Charges afterwards don't reach 100% as easily, or not at all. Charging to 80% puts less strain on the membrane as it keeps the two energy rich compounds apart. 50% is best, especially if device is always plugged in. At 50% the membrane is under the least amount of stress.
*Molten batteries *are the only ones I know that solve the problem, but they're the size of a house and meant to power cities.
Also we're finally starting to see devices acknowledge this issue. Phones now only charge to 80% overnight then go to 100% shortly before your alarm goes off. And always plugged in laptops can be set to 60% charge to preserve the lifespan of the battery.