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Can I improve my Fitbit device's battery life?

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The length of time your Fitbit device operates on a full charge depends on how frequently you use it and various settings. This article provides battery life estimates and tips for turning off features you don't need when you want to prioritize battery life. To make sure you're charging your device correctly, see How do I charge my Fitbit device?

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The Fitbit Alta battery can last up to 5 days between charges. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your tracker and phone:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off All-Day Sync.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • Turn off Quick View in the Fitbit app. Since this feature causes the screen to light up when you turn your wrist towards you, turning it off can prolong battery life:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off Quick View.
  • Turn call, text, or calendar notifications off if you know you're going to receive many hundreds of notifications. A large volume reduces battery life.
  • Don't receive reminders to move every hour. To get fewer reminders, make sure you walk 250 steps each hour, change the number of hours you want your stationary time monitored, or turn off the feature on days you don't need it.
  • If you have several silent alarms set, consider deleting some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage. 
  • Don't charge your device in extreme heat or cold. For best practices, see How do I charge my Fitbit device?

The Fitbit Alta HR battery can last up to 7 days between charges. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your tracker and phone:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off All-Day Sync.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • Turn off Quick View in the Fitbit app. Since this feature causes the screen to light up when you turn your wrist towards you, turning it off can prolong battery life:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off Quick View.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • If you don't need heart rate data, change the Heart Rate setting to Off. When you turn it back on, use Auto. 
  • Don't receive reminders to move every hour. To get fewer reminders, make sure you walk 250 steps each hour, change the number of hours you want your stationary time monitored, or turn off the feature on days you don't need it.
  • Turn off bedtime reminders.
  • Turn call, text, or calendar notifications off if you know you're going to receive many hundreds of notifications. A large volume reduces battery life.
  • If you have many silent alarms set, consider deleting some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage. 
  • Don't charge your device in extreme heat or cold. For best practices, see How do I charge my Fitbit device?

The Fitbit Blaze battery can last up to 5 days. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Make sure you're charging Blaze fully each time. When you think Blaze is done charging, take it out of the charging cradle and then put it back in briefly. If you see a large, blue battery icon you'll know the battery is full. For best practices, see How do I charge my Fitbit device?
  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your tracker and phone:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off All-Day Sync.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • Turn off Quick View in the Fitbit app. Since this feature causes the screen to light up when you turn your wrist towards you, turning it off can prolong battery life:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off Quick View.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • If you don't need heart rate data, change the Heart Rate setting to Off. When you turn it back on, use Auto. 
  • Turn off call, text, calendar, and app notifications if you know you're going to receive many hundreds of notifications. A large volume reduces battery life.
  • Charge your tracker more often if you use music control or do Fitstar workouts frequently. 
  • Don't receive reminders to move every hour. To get fewer reminders, make sure you walk 250 steps each hour, change the number of hours you want your stationary time monitored, or turn off the feature on days you don't need it.
  • Don't use the maximum Brightness setting.
  • If you have many silent alarms set, consider deleting some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage. 
  • Don't charge your tracker in extreme heat or cold. For best practices, see How do I charge my Fitbit device?
  • Shut down Blaze when it's not in use.
If you shut down Blaze, make sure it syncs as soon as you turn it back on. The time shown on the clock will be incorrect until you sync.

The battery in Fitbit Charge can last approximately 7 days, while the battery in Fitbit Charge HR and Fitbit Charge 2 can last approximately 5 days. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your tracker and phone:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off All-Day Sync.
  • Turn off Quick View in the Fitbit app. Since this feature causes the screen to light up when you turn your wrist towards you, turning it off can prolong battery life:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off Quick View.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • If you don't need heart rate data, change the Heart Rate setting to Off. When you turn it back on, use Auto. 
  • Turn off notifications from your phone if you know you're going to receive many hundreds of notifications. A large volume reduces battery life. 
  • On Charge 2, use guided breathing sessions less frequently. Multiple sessions per day may reduce battery life. For more information see What should I know about the Relax feature? Also consider turning off bedtime reminders.
  • If you have many silent alarms set, consider deleting some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage. 
  • Don't charge your tracker in extreme heat or cold. For best practices, see How do I charge my Fitbit device?

The battery in the original Fitbit Flex can last up to 5 days. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your tracker and phone:
    1. From the Fitbit app dashboard, tap or click the Account icon () > your device image.
    2. Find the option to turn off All-Day Sync.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • If you have many silent alarms set, consider deleting some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage.
  • Don't charge your tracker in extreme heat or cold. For best practices, see How do I charge my tracker?

The battery in Fitbit Flex 2 can last up to 5 days. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your tracker and phone:
    1. From the Fitbit app dashboard, tap or click the Account icon () > your device image.
    2. Find the option to turn off All-Day Sync.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • When you're not at the pool, make sure the swim detection feature is off. For more information see How do I track my swims with my Fitbit device?
  • Turn call, text, or calendar notifications off if you know you're going to receive many hundreds of notifications. A large volume reduces battery life. 
  • Don't receive reminders to move every hour. To get fewer reminders, make sure you walk 250 steps each hour, change the number of hours you want your stationary time monitored, or turn off the feature on days you don't need it.
  • If you have many silent alarms set, consider deleting some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage. 
  • Don't charge your tracker in extreme heat or cold. For best practices, see How do I charge my Fitbit device?

Fitbit Flyer has up to a 6-hour playtime between charges. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Turn off the power boost setting when you are not using it. To turn off power boost, press the Up and Down buttons at the same time. You'll hear an audio notification telling you if power boost is turned on or off.
  • Turn off Flyer when you're not using the headphones. Flyer turns off automatically if you haven't played music or received a phone call for 10 minutes, but you can turn it off at any time by holding the Power button on the right earbud for 1 second.
  • When your battery is low, a 15-minute quick charge provides 1 hour of playtime.

The Fitbit Ionic battery can last up to 5 days. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Make sure you're charging Ionic fully each time. It can take up to 2 hours to charge your watch. For instructions, see How do I charge my Fitbit device?
  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your watch and phone. Note that if you turn off All-Day Sync, certain apps including Weather won't work since data isn't being sent from the Fitbit app to your watch:
     
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off All-Day Sync.
  • Turn off the option to wake the screen when you turn your wrist; instead, tap the screen to turn it on:
    • On your watch, swipe right to the shortcuts screen > Screen Wake > Manual.
  • If you don't need heart rate data, change the Heart Rate setting to Off. Note that the green LED continues to flash even if Heart Rate is turned off.
  • Turn off call, text, calendar, and app notifications if you know you're going to receive many hundreds of notifications. A large volume reduces battery life:
    • On your watch, swipe right to the shortcuts screen > Notifications > Off.
  • Charge your watch more often if you play music, exercise with GPS, complete Fitbit Coach workouts, or use the music controls frequently.
  • Don't receive reminders to move every hour. To get fewer reminders, make sure you walk 250 steps each hour, change the number of hours you want your stationary time monitored, or turn off the feature on days you don't need it.
  • If you have many silent alarms set, consider deleting some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage. 
  • Shut down Ionic when it's not in use. For instructions, see How do I turn off my Fitbit device?

The Fitbit One battery can last up to two weeks. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your tracker and phone:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off All-Day Sync.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • If you have many silent alarms set, consider deleting some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage. 
  • Don't charge your tracker in extreme heat or cold. For best practices, see How do I charge my Fitbit device?

If you aren’t tracking runs or exercises that use GPS, the battery in Fitbit Surge should last up to 7 days. A fully charged Surge can track up to 10 hours of activities that use GPS. Because battery life is affected by use and other settings, actual results may vary.

Consider these tips when you want to conserve battery life:

  • Shut down your Surge when not in use.
  • Turn off All-Day Sync in the Fitbit app because it increases battery drain on both your tracker and phone:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off All-Day Sync.
  • Turn off Quick View in the Fitbit app. Since this feature causes the screen to light up when you turn your wrist towards you, turning it off can prolong battery life:
    1. From the Fitbit app dashboard, tap or click the Account icon (User-added image) > your device image.
    2. Find the option to turn off Quick View.
  • (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
  • If you don't need heart rate data, change the Heart Rate setting to Off. When you turn it back on, use Auto. 
  • Charge your tracker more often if you use music control frequently.
  • If you have many silent alarms set, remove some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage. 
  • Don't charge your tracker in extreme heat or cold. For best practices, see How do I charge my Fitbit device?

The Fitbit Zip battery should last up to 6 months before needing a replacement. Frequently tapping your tracker to check your statistics may reduce battery life.

When the battery drops below 25%, a low battery indicator will show on your tracker display and dashboard. A flashing battery icon indicates that your tracker is very close to being completely out of battery life. Data could be lost if your tracker is not synced before replacing the battery.

To replace your Zip's battery:

  1. Buy a 3V coin battery, CR2025. It can be found wherever batteries are sold.
  2. Use the battery door tool to open and close the battery door compartment on the back of the your tracker. Zip has a harmless, polysilicone grease on the battery door that lubricates the rubber gasket to ensure a water-tight seal.
  3. Your old battery can be recycled.
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Last updated: November 18, 2017
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