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Forerunner 745 battery issue

1419459
over 4 years ago

I charged my 3 day old Garmin FR745 100% today.

After only 2 hours the forerunner FR745 shows only 91%, although I deactivated PulsOx and the connection to my cell phone too.

That can't be normal?

Does anyone have similar experiences?

  • 0 over 4 years ago

    This seems too fast indeed. Which watch face do you use?

  • 0 over 4 years ago

    I use the default watch face with seconds disabled. 

    Now from 21:05 to 7:05 (most time sleeping) I fall down to 51%. 

    Means I lost 49% battery in only 10 hours.

  • 0 over 4 years ago

    Some more data about my battery issue

    29.11.2020 10:10             à           100%    

    29.11.2020 11:10             à           98%       (On the wrist, Airplane Mode on)

    29.11.2020 12:10             à           92%       (Put down; no longer on the wrist, Airplane Mode on)

    29.11.2020 14:10             à           83%       (Put down; no longer on the wrist, Airplane Mode on)

    29.11.2020 15:10             à           78%       (Put down; no longer on the wrist, Airplane Mode on)

    29.11.2020 17:14             à           68%       (Put down; no longer on the wrist, Airplane Mode on)

    29.11.2020 18:10             à           64%       (Put down; no longer on the wrist, Airplane Mode on)

    29.11.2020 19:20             à           58%       (Put down; no longer on the wrist, Airplane Mode on)

  • 0 over 4 years ago in reply to 1419459

    Seems to fast drainage. I would lost 20-25 % per day, normal setting (no airplane mode), with so activities too.

    I removed Spotify, and use Actiface watch face, with its Power saving option.

  • 0 over 4 years ago in reply to Thibaud J

    Yes, there is probably a technical defect.
    Battery consumption is always the same, no matter what settings I have set.

    The 20-25% per day, is the watch connected to the cell phone and do you wear it when sleeping?

  • 0 over 4 years ago in reply to 1419459

    Yes, the watch is connected continuously to the phone, and even sync at least a dozen time per day, every time i consult GC on mobile. 

    But no, I do not wear the watch at night.

    I compare the battery % from morning to morning, and I see a 20-25% from one day to the next, even with 1 - 2 hours of activity recorded daily.

  • 0 over 4 years ago in reply to Thibaud J

    Okay, thank you very much for your answer.

    I have already contacted Garmin and they will replace it.

  • 0 over 4 years ago in reply to 1419459

    Good for you. By the way, can I ask you a different topic: do you use auto prompt (voice) during activities? I cannot get the auto prompt to my iPhone, same I had before with my 645. Same phone.

    Thanks and have a good day.

  • 0 over 4 years ago in reply to Thibaud J

    Hello, sorry but I do not use auto prompt (voice) during activities. What should do this feature? 

  • 0 over 4 years ago in reply to 1419459

    It will (should) give you an audio alert on your phone (if with you and connected to the watch) or to your headphones (if connected to watch or to phone) every  X km, or X minutes (depending on your settings) with distance, pace, heart rates.