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Thread: HTC M8 discharges rapidly ... while switched off?

  1. #1
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    HTC M8 discharges rapidly ... while switched off?

    My M8 had about a 50% charge last night and I intended to sleep in this morning so before going to bed I switched it off. Yes, I know I could have just silenced it instead but switching it off should have preserved the existing charge.

    When I powered it on this morning it immediately shut back down due to a state of low charge. I put it in the cradle and it reported the charge was at 10%.

    This is at least the second time this has happened (there might have been one or two others that I just didn't give any credence to) but I know to a certainty I had a very similar occurrence about a month ago because it sent me shopping for a replacement phone for fear my (non-user-replaceable) battery was near death from old age. Except that it resumed normal behavior after it was charged. Battery life still gets 'iffy' below an indicated 50% charge, and using the camera when much under half charge will usually cause it to power down (regardless whether flash is employed), but it otherwise takes three-ish days to reach half charge, provided I'm not using it more than usual.

    But except the for those isolated incidents of charge 'disappearing' when switched off, it has behaved pretty much as you would expect a 4-year-old battery to. So I thought I would ask if any other HTC owners have seen such behavior from their phone? And if so, have you found anything to ameliorate it?
    Murphy was an optimist

  2. #2
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    Okay this is odd.

    I put my phone on the cradle and charged to an indicated 95% full. Then I rebooted leaving it on the cradle and it showed it was at 79% charge.

    EDIT:
    I charged it to 94% and rebooted again. After which it showed 82%.

    Note to self:
    Never reboot or turn off phone.
    Last edited by TnSlim; 12-23-2019 at 03:23 PM.

  3. #3
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    Quote Originally Posted by TnSlim View Post
    Okay this is odd.

    I put my phone on the cradle and charged to an indicated 95% full. Then I rebooted leaving it on the cradle and it showed it was at 79% charge.

    EDIT:
    I charged it to 94% and rebooted again. After which it showed 82%.

    Note to self:
    Never reboot or turn off phone.
    You need a new battery.. those are all tell tale signs of a bad battery. Just go to a nearby fixit place and have them swap it for a few bucks.
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    OP, how long have you had the phone? I agree with brad15 that the battery needs to be replaced based on your experience. Sounds like a failing battery.
    Don't make me turn this car around.....

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