361-00078-00 Battery for Garmin Forerunner 920XT Sport Fitness Tracker Smartwatch Battery Replacement - 300mAh 3.7V Lithium Polymer
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Article number: 940709
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Expected on 13 Nov 2026
5% discount if ordered in advance
Shipping: €2.95
€12.95
€12.30 -5%
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- Garmin 361-00078-00
Description
Bring your Garmin smartwatch back to full charge with this brand new replacement 361-00078-00 battery - a 100% compatible Garmin Forerunner 920XT battery replacement from CELLONIC.
Is your Forerunner 920XT 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 3.7V smart watch / fitness tracker battery has been specifically designed for use as a Garmin 361-00078-00 battery replacement, with 100% compatibility for Garmin Forerunner 920XT batteries and more.
Long battery life: Garmin replacement battery 361-00078-00, 300mAh capacity
✔ Replacement Garmin battery – a perfect replacement battery for Garmin Forerunner 920XT smartwatches✔ High capacity, long runtime – reliable power and fewer charging breaks thanks to modern Lithium cells without memory effect tech – just like your original Garmin battery
✔ 100% compatible replacement for your original Garmin 361-00078-00 battery
High-quality, tested cells for Garmin sports watches – for up to 1000 charging cycles
✔ High-capacity, long battery life – 300mAh 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 361-00078-00 battery for your Garmin Forerunner 920XT smartwatch
Brand: CELLONIC Smartwatch Replacement Battery
Capacity: 300mAh
Voltage: 3.7V
Cell Technology: Lithium Polymer
Dimensions: 35.90 x 26.45 x 4.00mm
Alternative for / Replaces: Original 361-00078-00 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 Garmin batteries come with a 36-month guarantee!