1. Android Central Question's Avatar
    My battery life has gotten to the point that it drains about 40% overnight that I was late for work when I went to bed with my samsung galaxy s8 at 50%. Now I have to charge it when I sleep. I haven't got a screenshot but my battery usage dropped from 100 - 30 in about 15 hours. This is me not picking up the phone once in that whole 15 hours. Even my old iphone 5 could last up to 4 days on standby.

    Has anyonr else had this problem? and has anyone fixed it? think it might has started from the last update a couple days ago. Its 2nd Dec 2017 now.

    PS I'd already tried all the optimisations out there but all dont work.
    12-03-2017 02:16 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! It's always helpful to see your battery stats. Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

    1. The main Settings>Battery screen.
    2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
    3. The Screen category (to see total Screen On time).
    4. The Cell Standby category, if present (to see Time Without Signal).

    You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph

    You should also try wiping the cache partition, which can be generally helpful after a major system update. https://support.t-mobile.com/docs/DOC-34311
    12-03-2017 09:20 PM

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