LSS271621 Battery for FitBit Charge 3 / FB409 Sport Fitness Tracker Smartwatch Battery Replacement - 70mAh 3.85V Lithium Polymer  ...  more

Bring your FitBit smartwatch back to full charge with this brand new replacement LSS271621 battery - a 100% compatible FitBit Charge 3 battery replacement from CELLONIC.

Is your Charge 3 smartwatch battery no longer holding its charge? Swap it out for a new, long-life replacement watch battery – it’s simple to do and cheaper than buying a whole new watch.

This CELLONIC Lithium Polymer 3.85V smart watch / fitness tracker battery has been specifically designed for use as a FitBit LSS271621 battery replacement, with 100% compatibility for FitBit Charge 3 batteries and more.

Long battery life: FitBit replacement battery LSS271621, 70mAh capacity

✔ Replacement FitBit battery – a perfect replacement battery for FitBit Charge 3 smartwatches
✔ High capacity, long runtime – reliable power and fewer charging breaks thanks to modern Lithium cells without memory effect tech – just like your original FitBit battery
✔ 100% compatible replacement for your original FitBit LSS271621 battery  

High-quality, tested cells for FitBit sports watches – for up to 1000 charging cycles

✔ High-capacity, long battery life – 70mAh for extended use between charges
✔ Long service life at full power – battery uses Lithium cells without memory effect, for premium performance and increased lifespan
✔ Certified safety and quality – CE & ROHS certified, Grade A cells with short-circuit, overheating and overvoltage protection
✔ Thorough, comprehensive testing – each battery cell is tested for optimum capacity and to ensure all safety requirements are met – all before installation

Replacement LSS271621 battery for your FitBit Charge 3 smartwatch
Brand: CELLONIC Smartwatch Replacement Battery
Capacity: 70mAh
Voltage: 3.85V
Cell Technology: Lithium Polymer
Dimensions: 19.10 x 16.04 x 3.00mm
Alternative for / Replaces: Original LSS271621 battery 

★ 3-Year Guarantee ★
As an international specialist retailer since 2004, we know what matters when it comes to high-quality replacement smart watch, fitness tracker, sports wristband & GPS watch batteries. That's why our replacement FitBit batteries come with a 36-month guarantee!