Can Fitbit Battery Be Replaced: How Can You Do It?

Recently, my Fitbit stopped charging and went completely dead. Upon exploring the internet and searching for solutions, I discovered that many people have problems with their Fitbits and want to replace the battery.

So, if you’re one of them, remember that changing the Fitbit battery depends on your model. Some Fitbit models feature in-built batteries that can’t be replaced.

Stay connected with me to know all about Fitbit battery replacement and which models can be easily replaced. So without any further ado, let’s jump into it.

Can Fitbit Battery Be Replaced?

fitbit battery be replaced

Yes, the Fitbit battery can be replaced, but it depends on your model. Some Fitbit models come with in-built batteries which can’t be replaced.

On the other hand, a few Fitbit models feature replaceable batteries, which you or a professional can replace.

Now that you have got your answer. It’s time to see which Fitbit models have replaceable batteries and which can’t.

Comparison Of Fitbit Models: Built-In Battery Vs. Replaceable Battery

Here is each Fitbit model’s comparison table and its battery type.

Fitbit ModelsBattery Type
Fitbit Charge 2Not Replaceable
Fitbit Charge 3Not Replaceable
Fitbit Charge 4Not Replaceable
Fitbit Blaze Not Replaceable
Fitbit Alta HRNot Replaceable
Fitbit Charge Replaceable
Fitbit FlexReplaceable
Fitbit OneReplaceable
Fitbit ZipReplaceable
Fitbit Flex 2Not Replaceable
Fitbit VersaNot Replaceable
Fitbit Versa 2Not Replaceable
Fitbit Versa 3Not Replaceable
Fitbit Versa LiteNot Replaceable
Fitbit Inspire HRNot Replaceable
Fitbit InspireNot Replaceable

Now look for the Fitbit trackers you own from the above table and see whether its battery can be replaced. 

If yes, then follow my step-by-step guide for proper replacement.

How To Replace Fitbit Battery?

For your ease, I’ve explained everything regarding Fitbit Battery replacement:

Things Required

  • Pair of tweezers
  • Mini screwdriver
  • A new battery


  1. Turn off your Fitbit and turn it over.
  2. Grab the screwdriver and remove the screws holding its back cover.
  3. After removing the cover, you’ll see a metal casing. Now use the tweezer to remove metal casing.
  4. After that, you should see a small battery inside. It’s time to remove this old battery. Use the tweezer to pull this out and remove it properly.
  5. Now place a new battery into the same space.
  6. Put the casing again and reattach the back cover. Tight its screws.

After completing the steps, turn on your device and see if it works.

What Should I Do After Replacing My Fitbit Battery?

After replacing your Fitbit battery, you must think about what to do now. 

At this stage, most people make the mistake of directly turning on their device after replacement which may cause issues, and the device might not turn on.

What you have to do is calibrate the new battery. It’s my personal experience; believe me, it will give you optimal performance.

For calibration of a new replacement battery, follow these simple steps:

  • Plug in your Fitbit, charge it to 100%, and leave it for some time. I recommend 2 hours of charging.
  • Now turn on your device and use it for a long time until it shuts down.
  • Then charge it again.

By doing this, your new battery will be addicted and come on its track. For this reason, it will last longer without any issues.

When To Replace The Fitbit Battery?

Fitbit Battery

To understand when you should replace your Fitbit battery, I’ve enlisted some factors that you should take into account:

1- Usage

Replacing your Fitbit battery mainly depends on usage and time. When you use Fitbit watch roughly, it will last a few months. 

As far as I’m concerned, my Fitbit lasts for one year. But typically, it last for 3-5 months.

2- Charge Holding

Charge holding also indicates that your Fitbit battery needs a replacement. When you notice that your device stops holding a charge and gradually decreases the battery, you must think of a replacement.

3- Battery Draining During Tracking

Quick battery draining while tracking heart rate and GPS is also a major indication that your Fitbit needs replacement.

It’s my favorite method to check for a replacement. Start a continuous heart rate tracking or GPS and monitor the battery life to see where it goes.

Bonus Tips To Increase The Lifespan Of Fitbit Battery?

fitbit battery lifespain

I’ve been using Fitbit for almost one year, and here are my bonus tips that you can follow to increase your device’s battery lifespan.

1- Never Let Your Device Drop Below 20%

Remember, your Fitbit battery has specific cycles that decrease when you drop your battery below 20%.

This is because Fitbit features Lituim-ion batteries, so draining these batteries too much can shorten the lifespan.

Also, try charging your Fitbit at about 40%-45% because it’s the best time for lithium-ion batteries to be charged.

3- Turn On Tracking Only When It’s Necessary

One of the most important steps that you can take to increase your Fitbit battery’s lifespan is to decrease its functionality.

Remember, continuous HR tracking, using GPS, etc., decreases battery life, automatically decreasing the lifespan. So, it’s important to use them only when necessary.

Additionally, notifications and updates also cause a major decrease in battery life. So, if not important, turn off your notifications to increase your device’s battery lifespan.

Troubleshooting My Dead Fitbit Battery

As I mentioned at the beginning, my Fitbit battery has become dead, and here are some steps I take to revive a dead battery.

Reset The Device

Firstly, I plugged in my Fitbit, but it didn’t respond. So, I thought to reset it by following these steps:

  • Plug in the charging cable.
  • Press and hold the power button for 10-15 seconds.
  • Release the button and wait for a few minutes before charging again.

It’s important to charge the Fitbit accurately. So make sure that the two metal prongs on the back of the tracker must align with their corresponding slots in the charger.

What Should I Do If My Fitbit Battery Is Irreplaceable?

If you own a Fitbit model whose battery is irreplaceable, then there’s the only thing you can do: contact Fitbit support.

But before contacting, it’s important to check if your watch is still under warranty. Also, you must be eligible for replacement device criteria.

If your Fitbit fulfills its criteria, they will assist you with a replacement or a repair.

Frequently Asked Questions (FAQs)

Can You Change The Battery In A Fitbit?

It depends on the Fitbit models you own. Some Fitbit models come with a built-in battery, and their battery can’t be replaced like Fitbit Charge 2, and Fitbit versa batteries are non replaceable.

How Long Does Fitbit Battery Last Before Replacement?

It also depends on the usage of the device. It might last 5-6 months if it’s roughly used. But if used less and with care, it will last one and a half years.

How To Make Fitbit Battery Last Longer?

To make your Fitbit battery last longer, don’t let its battery drop below 20%. Charge it between 40-45% and use its tracking only when necessary.

Final Words

The article concluded that replacing the Fitbit battery depends on your model. So, if you own a model with a replaceable battery, you are ready for a replacement. Otherwise, contact Fitbit support.

Hopefully, you should know Fitbit battery can be replaced, and all the related queries related to this question.

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