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New FB421 Battery Replacement Fitbit Charge 5 FB421 Activity Tracker

23.99$| Free Delivery
  • Availalbe: In stock (Processing Time 24 - 48 hours)

New replacement battery for Fitbit FB421. This battery is compatible with the Fitbit Charge 5 FB421 Activity Tracker and can be used with your regular charger.It offers a high performance and durability.

Capacity: 65mAh
Voltage: 3.87V
Cell Type: Li-ion

1 year WarrantyUp to 1 year Warranty Quality GuaranteedQuality Guaranteed 30-day return policyy30-day return policy

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Fitbit Charge 5 FB421 Activity Tracker Battery Replacement FB421 – 65mAh

The Fitbit FB421 Battery Replacement is a 100% compatible replacement for the OEM Fitbit FB421 battery. The Fitbit FB421 battery replacement is manufactured using Li-Ion cells and features a capacity rating of 65mAh. The full specifications can be found below:

Fits the following devices:

Fitbit Charge 5 FB421 Activity Tracker

Replaces the following products:

FB421

Features Of Battery for Fitbit Charge 5 FB421 Activity Tracker FB421:

  • Battery Us offer you a replacement battery of high quality
  • This battery type Li-ion Voltage: 3.87V Capacity: 65mAh
  • Battery Us provides a 12-month replacement warranty.
  • Condition: New

Replace the battery, not your device. It’s the smarter, cheaper, eco-friendlier choice, saving you money while cutting your environmental footprint through recycling.

We cover the Fitbit Charge 5 FB421 Activity Tracker Battery replacement with a full 12-month warranty. For Any Queries Please Feel Free to Contact Us We will try to answer your question as soon as possible.

Fast US delivery. 30-day refund policy. Buy now!

What should I pay attention to when using the FB421 battery replacement?

The performance of all rechargeable batteries will decrease with time and cumulative usage. Wrongly using it will speed up the process significantly. Therefore, you need to pay attention to the following points when using the battery for FB421:

  • High-temperature environment: High temperature is the battery killer, which will cause the battery to completely die or even explode.
  • Exhausted battery power: Speed up the wear and tear of the battery. Usually, it is necessary to avoid Fitbit Charge 5 FB421 Activity Tracker battery power below 2%.
  • Power adapter: The wrong power adapter may damage the laptop and battery. Please use a qualified and correct adapter to charge.
  • Use Fitbit Energy Management, a power management application provided by Fitbit, to manage FB421 replacement battery charging.
  • If the laptop is not used for a long time, it should be turned off after charging over 80% and stored in a dry and cool place. If the battery is removable, it is best to remove the battery and store it in a plastic bag.