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The batteries in our smartphones are designed to last for a certain amount of cycles before they start to lose the ability to stay fully charged. This is why in recent years, companies are introducing features that lets users limit the amount their phone charges to. If you own a Pixel handset, one thing you should take note of is that the Pixel’s charging limit seems to only work when it’s switched on.
This was initially discovered by the folks at 9to5Google. It appears that if you set your Pixel to stop charging at 80%, the phone needs to be powered on for it to work. This means that if your phone has died or you switched it off and want to charge it to 80%, it won’t, and will instead go to the full 100% until you take it off the charger.
This is speculated to be because the feature exists on a software level, as opposed to a hardware level. If that’s the case, the phone definitely needs to remain on for the software to essentially kick in.
Like we said, a lot of smartphone batteries these days have a set number of cycles. A cycle is where a phone goes from 0-100%. Doing so constantly will wear out the battery, leading to it no longer being able to hold its full charge. This will result in your phone showing you 100% battery on the screen, but in reality it could be about 80%.
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