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Originally Posted by Dirk-71
Ok, it has nothing to do with the patches. It is a weird behavior of the Kobo Libra 2. An upatched Libra 2 also did stopp charging. I do not have this issue with a Kobo Aura One. Maybe a firmware update can fix this.
Update 23.10.24...it's not a bug, it's a feature!?
Maybe Kobo has developed an intelligent charging system to protect the battery. Who knows? I've had a chat with the Kobo Support. The only thing they can do is asking a lot of questions: Did you try another USB-Cable? Did you try another charger? Did you factory reset your reader? Bla bla....technical "support" is mostly waste of time. It has nothing to do with cables, chargers or whatever. It is simply the firmware of the Kobo Libra 2.
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A common knowledge about rechargeable batteries (e.g. Lithium-iontypes) says that their lifespan propably last longer when they start to get recharged at 15%~20% and stop being charged at 80%~85%, instead of at completely drained or at level 100%, respectively.
On cellphones, this practice is named 'battery protection', or 'battery saver', or whatever. When activated, the phone re-calibrates its battery level display. In the other words, 15% becomes the new 0% and 80% is the new 100%, for example.
According to your observation, kobo may not re-calibrate at all.