1. lazio13282's Avatar
    Hello,
    since 2 days my S7 has a battery crash.

    When it is under 15% of battery, it goes to 1% in one minute and then goes
    in auto turn off.
    other examples:
    - the battery goes from 10% to 5% in 20seconds.
    - auto turn off at 13%.
    if I try to turn on the phone, the battery is at 0%. I only have to charge it.

    In the battery stats I see a vertical line of the battery at 15%.

    Before to do a factory reset, someone knows this issue?
    it has 1 year and 4 months of life.
    Thank you in advance.
    10-09-2017 09:56 AM
  2. B. Diddy's Avatar
    Welcome to Android Central! The battery might be deteriorating. You may have to bring it to a repair shop if it's no longer under warranty.
    10-09-2017 03:33 PM
  3. lazio13282's Avatar
    hello, thank you for your welcome.

    The warranty will expire on next June 2018, so I have enough time.

    I'm triyng to do the calibration of the battery as suggested on this same forum.

    Yesterday the battery is crashed from 14% to 1% in few seconds. Then a notification prompted me to correct the anomalous consumption of an app (it was whatsapp). I correct it and the it is remained turned on for 2 hour and half (without using) at 1%. Then it goes in auto turn off.

    This evening I see if it still have the problem.

    Do you think a factory reset can help?

    thank you
    10-10-2017 04:12 AM
  4. lazio13282's Avatar
    hello, an update.
    without factory reset, without app.
    On Monday, the battery is crashed from 14% to 1% in few seconds. Then a notification prompted me to correct the anomalous consumption of an app (it was whatsapp). I correct it and the it is remained turned on for 2 hour and half (without using) at 1%. Then it goes in auto turn off. Then I turned on and I wait that it goes in auto turn off. Then I plugged and I loaded battery to 100%. I think this procedure is called calibration.

    The next days battery is not crashed, it has normal consumaption.
    Today I will monitor what will happen.
    thanks
    10-11-2017 05:05 AM

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