Home Support Wearables ProSense Epson ProSense 307

How do I determine how much power is left on the battery?

  • The battery icon on your device screen displays the remaining level of power in the battery.

    When the battery is low, you see this screen:

    (Press any button to return to the Time screen.)

    When the battery is too low, the screen may go blank.

    Caution:
    Charge your device at least once every 6 months when you are not using the device; long-term storage of the device with a low battery may degrade battery performance.

    The operating time for the battery varies depending on the device settings you are using, as described in the tables here.

    Note: The Light setting is Off in all of the estimates shown.

    Continuous workout time left (approximate)

    Battery icon Operating time Settings used
    ProSense 307:

    8 to 16 hours

    ProSense 347/367:

    18 to 36 hours

    Update Frequency: Per Second

    Meas. HR setting: On

    ProSense 307:

    10 to 20 hours

    ProSense 347/367:

    21 to 42 hours

    Update Frequency: Per Second or Wrist turn

    Meas. HR setting: On or Off

    ProSense 307:

    12 to 24 hours

    ProSense 347/367:

    25 to 50 hours

    Update Frequency: Wrist turn

    Meas. HR setting: Off

    ProSense 307:

    3 to 8 hours

    ProSense 347/367:

    7 to 18 hours

    Update Frequency: Per Second

    Meas. HR setting: On

    ProSense 307:

    4 to 10 hours

    ProSense 347/367:

    8 to 21 hours

    Update Frequency: Per Second or Wrist turn

    Meas. HR setting: On or Off

    ProSense 307:

    5 to 12 hours

    ProSense 347/367:

    10 to 25 hours

    Update Frequency: Wrist turn

    Meas. HR setting: Off

    ProSense 307:

    1.5 to 3 hours

    ProSense 347/367:

    3.5 to 7 hours

    Update Frequency: Per Second

    Meas. HR setting: On

    ProSense 307:

    2 to 4 hours

    ProSense 347/367:

    4 to 8 hours

    Update Frequency: Per Second or Wrist turn

    Meas. HR setting: On or Off

    ProSense 307:

    2.5 to 5 hours

    ProSense 347/367:

    5 to 10 hours

    Update Frequency: Wrist turn

    Meas. HR setting: Off

    ProSense 307:

    0 to 1.5 hours

    ProSense 347/367:

    0 to 3.5 hours

    Update Frequency: Per Second

    Meas. HR setting: On

    ProSense 307:

    0 to 2 hours

    ProSense 347/367:

    0 to 4 hours

    Update Frequency: Per Second or Wrist turn

    Meas. HR setting: On or Off

    ProSense 307:

    0 to 2.5 hours

    ProSense 347/367:

    0 to 5 hours

    Update Frequency: Wrist turn

    Meas. HR setting: Off

    Continuous time display left; approximate

    Setting 30 days 7 days 5 days
    Daily Activity Tracking Off On (Meas. HR setting: Auto) On (Meas. HR setting: Continuous)
    Auto Sleep Mode On On On
    Auto Search Off Off Off
    Bluetooth Off On On

    Note: Operation time also varies depending on the operating environment's effects on GPS reception.

    Related concepts
    Battery Life
    Related references
    Solutions to Watch Charging Problems
Published:  Dec 1, 2017 Was this helpful?​ Thank you for the feedback!
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