Can You Replace The Battery in a Fitbit? (It Depends!)

Fitbits are wonderful tools that are easy to use and convenient to wear. These tiny little wristband trackers are an excellent way to monitor your sleep and stay on top of your health goals. Although rechargeable, a Fitbit battery can eventually die as the lithium-ion battery becomes exhausted.

You can replace a Fitbit battery with a new lithium-ion battery. Opening the back of the Fitbit to replace the battery will void the Fitbit warranty. You can change all Fitbit batteries except the Fitbit Versa.

Changing the Fitbit battery only requires a few simple household tools. A replacement battery will cost a few dollars, and the whole process can be completed in a matter of minutes. Keep in mind that proper Fitbit care can ensure your battery lasts for as long as possible.

Try only to charge your Fitbit every few days, and avoid letting your Fitbit battery drop to below a 20% charge. The first time you use your Fitbit, you’ll want to ensure you get a full charge before using the new device.

Can You Replace All Fitbit Batteries?

You can likely replace your Fitbit battery if it starts to die, but much will depend on your particular Fitbit model. Every Fitbit battery can be changed with the exception of the Fitbit Versa. 

You cannot change the battery on a Fitbit Versa. If your Versa battery has died, your best option is to simply invest in a new Fitbit rather than trying to replace the battery.

How Long Does a Fitbit Battery Last?

A Fitbit has a reliable lithium-ion battery that can be recharged almost daily if needed. Usually, a Fitbit battery will last between three and five years, depending on the amount of use. Proper care of the battery, including appropriate use and charging, will ensure your Fitbit battery lasts longer.

How Do I Know When to Replace My Fitbit Battery?

Fitbits can last for years with the proper care and protection. While the rechargeable battery is a nice feature, it can also become depleted over time. Eventually, your rechargeable lithium-ion battery will fail completely, rendering your Fitbit useless.

You can usually tell when it is time to replace your Fitbit battery. You’ll start to notice that your Fitbit charge doesn’t last as long. Suddenly a Fitbit that used to last for five days can now barely make it through a whole day without charging. 

Further, you may notice that your Fitbit is taking longer to charge each time or won’t charge at all. If you notice these signs, it may be time to replace the internal lithium-ion battery.

What Type of Battery Does a Fitbit Use?

For most Fitbit watches (with the exception of the Fitbit Versa) you’ll be able to replace an exhausted Fitbit battery. However, changing the Fitbit battery will likely void your warranty. Most Fitbits use a lithium-polymer battery which can be easily found online or at a specialty battery store.

Most lithium-polymer batteries are quite small and only cost a few dollars. If you don’t feel comfortable changing the battery yourself, you may be able to find a repair specialist who will change the battery for you.

What Tools Do I Need to Change a Fitbit Battery?

Replacing a Fitbit Battery is an easy DIY project that can be completed in just a few minutes. You’ll only need a few simple tools that are likely in your home already. 

To replace a Fitbit battery, you’ll want a small screwdriver set, similar to what you’d use to repair some eyeglasses. You’ll also need a small pair of tweezers to help you remove the back cover of your Fitbit.

How Do I Replace the Battery?

To replace the battery in your Fitbit, you’ll first need the necessary tools and the correct replacement battery. Keep in mind the Fitbit Versa battery cannot be replaced. Opening the back of the Fitbit will also void the warranty on your fitness tracker.

To change the battery, you’ll want to:

Step 1: Remove Screws

Turn your Fitbit over and locate the screws on the back of your device. You’ll need to remove the screws completely.

Step 2: Back Cover

Using your tweezers, pry the back cover off the device and fully remove it. You may have some resistance when removing the back cover.

Step 3: Battery

Locate the small battery inside the Fitbit. It will be circular. Use the tweezers to hold and remove the battery. You can now properly discard this dead battery.

Step 4: Replace

You’ll want to replace the expelled battery with your new battery. Be sure to install the new battery with the same orientation as the original battery to ensure it’s positioned correctly.

Step 5 Assemble

With the new battery in place, assemble the Fitbit again. You’ll want to put the cover back in place and secure it with the screws. Tighten the screws fully before attempting to restart the Fitbit device.

After you have the watch fully assembled, you’ll want to power on your Fitbit and test the functionality before ensuring you have successfully replaced the battery.

How Long Does a Fitbit Battery Charge Last?

One of the most attractive features of a Fitbit is the rechargeable battery. The internal Fitbit battery can last for years without a replacement if cared for properly.

By caring for your Fitbit properly, you’ll be able to maximize the life of your battery and extend the time between charges. Normally, a Fitbit battery can last for about five days on a single charge.

What Drains a Fitbit Battery?

Certain activities with your Fitbit will cause the battery to drain faster than usual. Of course, continual physical activity will cause Fitbit to work harder, but small background processes can cause the battery life to die more quickly than usual.

Some standard Fitbit features that can absolutely drain the battery include:

  • Making calls
  • Talking to Alexa or Google Assistant
  • Use of multiple alarms
  • Constant GPS monitoring and tracking
  • Constant Sync mode

Of course, these features are nice to use on occasion. If you are concerned about keeping your Fitbit charged and full of battery power, try limiting these functions unless necessary.

How Can I Help My Fitbit Battery Last Longer?

Caring for your Fitbit properly can ensure your rechargeable battery lasts longer.

Some best practices to prolong your Fitbit battery life include:

  • Bluetooth – When not needed, be sure to turn off the Bluetooth functionality. You can set your Fitbit option to “Phone Only” to prevent unnecessary connections that drain battery life.
  • Charge – To prolong your Fitbit battery’s life, try to avoid charging your Fitbit overnight, even though it’s tempting. Only charge your device every few days. Overcharging the battery at night can shorten the life of the rechargeable battery.
  • 20% – Try to keep your Fitbit battery power above 20%. When you drain the lithium-ion battery below this mark, you can drain the battery of its overall life. It can also take much longer for the Fitbit to turn on and re-sync if you let battery power drop below 20% which can further kill the life of your rechargeable battery.
  • Full Charge – When you use your Fitbit for the first time, be sure you let the Fitbit charge to 100% before use. This first charge will let the lithium-ion battery fully charge to its full capacity before use.