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Body battery rises and then drops straight off every night at midnight

3893024
2 months ago

Every night my watch does the same thing. My body battery rises throughout the night until midnight. At this point it drops straight down. In the morning it will say something like: 

Body Battery 8, +71, -83

Why is this happening and how do I fix it. I have tried resetting my watch but that hasn't helped.

  • 0 30 days ago in reply to 4547286

    No, unfortunately not. I reset my watch and it worked correctly for a while and now it is back to having the same body battery issue.

  • 0 30 days ago

    And how do stress levels and heart rate behave?

  • 0 29 days ago

    This is the "definition" of body battery. It tracks the changes during the day

  • 0 26 days ago in reply to flocsy🤠
    flocsy🤠 said:
    This is the "definition" of body battery. It tracks the changes during the day

    - according to OP, their watch doesn't always behave this way (with a sudden drop after midnight). They reset their watch and it stopped happening for a while

    - what if the user is awake at night (e.g. they're a night owl, insomniac or night shift worker)? should body battery still drop steeply after midnight?

    - my body battery (FR955) doesn't work that way. Looking at the at past few days, the changes are fairly smooth. No sudden drops except when I do an activity like running. The graphs are basically continuous from one day to the next too

    So I don't think it's in the "definition" of body battery that the value should reset (or sharply drop) at some point after midnight, or between days, or anything like that.

  • 0 26 days ago in reply to FlowState

    "Body Battery 8, +71, -83" means: current: 8, since midnight it increased 71 and decreased 83

  • 0 26 days ago in reply to flocsy🤠
    flocsy🤠 said:
    "Body Battery 8, +71, -83" means: current: 8, since midnight it increased 71 and decreased 83

    I know what it means. What's your point?

    Just because the body battery screen tells you how the value has changed since midnight does *not* imply that the value should reset (sharply drop) on or shortly after midnight. My body battery doesn't work that way, as I already said.

    You can see from OP's screenshot that the sharp drop doesn't even go all the way to the minimum level (usually said to be 5), as it smoothly drops a little further afterwards, so that's another point against the hypothesis that the drop represents an intentional reset. You would expect an intentional reset to go all the way to the minimum value.

    Besides, it just doesn't make sense from a physiological pov. Your body doesn't suddenly reset itself to the lowest energy level possible every midnight (or a few hours afterwards).

    FlowState said:
    - according to OP, their watch doesn't always behave this way (with a sudden drop after midnight). They reset their watch and it stopped happening for a while
    FlowState said:
    - my body battery (FR955) doesn't work that way. Looking at the at past few days, the changes are fairly smooth. No sudden drops except when I do an activity like running. The graphs are basically continuous from one day to the next too
  • 0 26 days ago in reply to FlowState

    Garmin's own example on their body battery page shows a chart with body battery around 50 at midnight, with no sudden sharp drop thereafter.

    So if you're thinking that maybe it should always start at a low number around midnight due to some sort of recalibration or something like that, that doesn't seem to be the case either.

  • 0 26 days ago

    Midnight is on the left edge of the graph, so it didn't drop at midnight but sometime in the morning. It would help us to see the body battery graph of the same day from the Garmin connect app,  because there we can see stress levels and activities as well.

  • 0 26 days ago in reply to flocsy🤠
    flocsy🤠 said:
    Midnight is on the left edge of the graph, so it didn't drop at midnight but sometime in the morning

    Yes I realize that - I alluded to that above. So are you trying to say you think body battery should reset at or after midnight, or not?

    Maybe I'm not understanding what you're trying to say?

    OP is complaining about the sharp drop (almost vertical) some time after midnight. So when you responded with "This is the "definition" of body battery. It tracks the changes during the day", I could only assume that you mean you think body battery should reset at midnight (or perhaps later).

    But clearly that's not what you said, and it seems that's not what you meant either.

    So I apologize if I misunderstood what you said or meant, but could you please clarify what "This is the "definition" of body battery. It tracks the changes during the day" is supposed to mean in the context of OP's complaint that "My body battery rises throughout the night until midnight. At this point it drops straight down."

    To be clear, OP doesn't think their body battery should be suddenly dropping at midnight (or even a few hours afterwards, I think). To be absolutely clear, I think OP doesn't believe the sudden drop in body battery is related to their stress or activities, they believe it's a bug

    How does "This is the "definition" of body battery. It tracks the changes during the day" relate to that? To be clear, nobody is complaining that the graph starts at midnight, they're complaining about a sudden drop in the body battery value that they don't think reflects reality.

    flocsy🤠 said:
    It would help us to see the body battery graph of the same day from the Garmin connect app,  because there we can see stress levels and activities as well.

    Perhaps, but then again:

    3893024 said:
    Every night my watch does the same thing. My body battery rises throughout the night until midnight. At this point it drops straight down.

    Do you think it's likely that OP is doing activities and/or experiencing tons of stress shortly after midnight, *every night*.

    If they were, they probably wouldn't be posting this topic since there would already be a reasonable explanation for the sudden drop, every night. Either that or they probably would've mentioned it in their post, since it would clearly be relevant.

    Again, OP also said that resetting the watch makes the perceived bug go away for a little while. That would not be expected if the drop was legit (due to nightly activities or stress)