Specifically designed to fit your speaker. See the full compatibilities list.
Guaranteed 2600mAh capacity
Unlike many competitors, our battery capacities are true, real and guaranteed. This Lithium Ion battery is 2600mAh and offers long runtimes with fewer charging breaks - exactly as advertised.
High-performance 3.7V PR-633496 battery
Our long-life replacement Bluetooth speaker batteries deliver consistently high performance that matches or exceeds that of your speaker’s original battery - all for a high number of charging cycles.
Superior quality and safety standards
Battery specialists since 2004, all our replacement speaker batteries undergo strict, rigorous testing to fully comply with the highest EU standards and beyond - that’s why they come with a 3-year guarantee.
The sustainable choice
Replace the battery, not your wireless speaker. It’s the smarter, cheaper, eco-friendlier choice, saving you money while cutting your environmental footprint through recycling.
Choose CELLONIC and never compromise on quality. Order now!
These batteries saved me. The batteries are truly compatible and certified with the HK onyx version 3. The speakers are as good as new. I had previously fitted batteries from another manufacturer with a higher capacity, which gave me endless problems. Speakers that shut down based on the type of song, although the batteries were charged and problems when I connected them together. I am really satisfied, as I do not notice any differences from the original batteries. Congratulations to subtel. !
This review was translated automatically. Source language was italian