General > General Technical Chat
Battery overcharing
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Halcyon:

--- Quote from: PlainName on December 27, 2023, 08:33:44 am ---I think it's safe to say that 'shorten the battery life' is what is included in 'damage the battery'.

--- End quote ---

The "may" in my response is very important, because it's not always the case. In fact, with many devices, they save themselves from users who know no better.

My point is, use the device as it has been designed and don't sweat the small stuff.
Siwastaja:

--- Quote from: Halcyon on December 27, 2023, 10:04:57 am ---use the device as it has been designed

--- End quote ---

... which is sometimes a bit difficult if you make the mistake of RTFM, making you even more confused about how the device has been actually designed to be used. For example, with instructions requiring you to unplug after charge, are you supposed to wake up in the middle of the night to see if the phone has been charged, just to unplug it? This then prompts for ideas that sound good in isolation, like a separate device which monitors the current and automagically disconnect the device after it is "apparently" fully charged; until you realize this obviously is a feature of the phone itself, it has to be; and the manual was just bullshit.
gf:
Has anyone really evidence that a smart phone battery will last longer than roughly 500 charge/discharge cycles (or say 1-2 years of daily discharge/recharge) if it is not kept plugged-in after the battery has reached 100% SOC? I guess that a good charge controller is supposed to switch off after the saturation phase anyway.
PlainName:
My current phone has been charged using the Accubattery app, since 7/5/20, to indicate when it should be terminated. According to that it is losing 0.7% per year. It's been my daily phone since 2018 and battery life is subjectively OK.

But... don't know how an equivalent one would be now with less care taken about charging. My partner has an A3 (the next but one model to mine) and I note that the phone is more often on charge than not when I see it - it runs flat a LOT faster than mine. However, there are excuses for that which wouldn't involve charging so they can't really be compared.
PlainName:

--- Quote ---I guess that a good charge controller is supposed to switch off after the saturation phase anyway.

--- End quote ---

Well that's the issue here - we are guessing, and no-one seems to know why some manufacturers (who, after all, would probably prefer not to make out that their product might be a bit iffy) state that the phone shouldn't be left on extended charge. If the charge controller, however that's implemented, could just consider the battery done and turn it all off, there would be no need for such warnings, would there? Indeed, does Apple have similar warnings despite apparently being able to control the charge from software?
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