Fitbit Replacement Batteries

Is your Fitbit fitness tracker dying faster than it used to or refusing to hold a charge? You do not need to replace your entire tracker just because the battery is failing. We offer high-quality Fitbit replacement batteries designed to bring your favorite health tracker back to life. Browse our selection of long-lasting rechargeable batteries for popular Fitbit models, including the Charge, Alta, Blaze, and Versa series. Enjoy all-day step tracking, sleep monitoring, and heart rate stats again without paying high prices for a new device.

Is your Fitbit fitness tracker dying faster than it used to or refusing to hold a charge? You do not need to replace your entire tracker just because the battery is failing. We offer high-quality Fitbit replacement batteries designed to bring your favorite health tracker back to life. Browse our selection of long-lasting rechargeable batteries for popular Fitbit models, including the Charge, Alta, Blaze, and Versa series. Enjoy all-day step tracking, sleep monitoring, and heart rate stats again without paying high prices for a new device.

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Replacement Fitbit Blaze Smartwatch Battery

Item #: SW-21
 
Voltage: 3.7 Volt / 120 mAh
• Li-Poly
• Dimensions: 1.2" / 0.1" / 0.7"
• Weight: 0.01 lbs
• Warranty: 6 Month
• See All Compatible Models
Price:
$12.95
Price: $12.95
QTY:

Why Replace Your Fitbit Battery?

Are you frustrated by a Fitbit tracker that dies midway through your morning walk? Over time, the internal lithium battery inside your fitness band naturally loses capacity after hundreds of charge cycles. Many people assume they have to throw away their tracker and buy an expensive new one, but replacing the battery is a smart and affordable solution.

Swapping out your worn battery offers several great advantages:

  • Save Money: A new replacement battery costs a small fraction of a brand-new tracker or smartwatch.
  • Restore Full Battery Life: Get back to several days of continuous step tracking, sleep stats, and heart rate monitoring on a single charge.
  • Keep Your Favorite Tracker: Avoid the hassle of setting up a new device, re-pairing your phone, or navigating a new mobile app layout.

How to Find the Right Fitbit Replacement Battery

Choosing the correct replacement battery is easy when you check your specific Fitbit model:

  • Identify Your Exact Model: Fitbit makes several popular product lines, including the Charge, Alta, Blaze, Versa, and Inspire series. Check your user guide or your Fitbit mobile app under account settings to verify your exact model name.
  • Verify Battery Specifications: Match the model number on your existing tracker or original packaging with our product descriptions to ensure complete compatibility.
  • Simple DIY Installation: With basic small electronics repair tools, you can replace the internal rechargeable battery pack and give your device a second life.

We stock reliable replacement batteries built to match the power and performance of your original Fitbit. If you need help finding the correct fit for your fitness tracker, our friendly team is ready to assist you on our contact us page. Plus, every purchase comes with our hassle-free 60-day return policy so you can shop with confidence.

Frequently Asked Questions

Can you replace the battery in a Fitbit fitness tracker?

A: Yes, you can replace the internal battery in most Fitbit models. While Fitbit does not offer official battery replacement services, installing a new rechargeable lithium battery yourself is an economical way to extend the lifespan of your tracker.

How long does a replacement Fitbit battery last on a full charge?

A: A fresh replacement battery typically lasts 4 to 7 days on a single charge, depending on your specific Fitbit model and how heavily you use features like continuous heart rate monitoring and GPS tracking.

How do I know which replacement battery fits my Fitbit?

A: Check the model name listed in your Fitbit smartphone app under your account settings, or check the back of the device case. Match that exact model name against the compatibility listings on our product pages.

What if I accidentally order the wrong battery model?

A: We make returns simple. We offer a clear 60-day return policy so you can easily return or exchange any item if you purchase the wrong size or model by mistake.