![NYI [Upgraded 3500mAh] Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4 Speaker](https://m.media-amazon.com/images/I/7148tIm5C0L._AC_SL3840_.jpg)
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๐ Upgrade your vibe, keep the party alive!
The NYI Upgraded 3500mAh Replacement Battery is a high-capacity, lithium-ion power source designed specifically for Harman Kardon Onyx Studio 1-4 speakers. Featuring a stable 3.7V output and built-in PTC safety protections, it ensures reliable, long-lasting performance. The package includes installation tools and adhesive tapes, supported by a 12-month warranty and responsive customer service, making it the ultimate upgrade for your premium audio experience.
| ASIN | B09C25691F |
| Antenna Location | Speaker |
| Battery Capacity | 3500 milliamp_hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 140 g |
| Best Sellers Rank | #27,183 in Electronics ( See Top 100 in Electronics ) #712 in Portable Bluetooth Speakers |
| Brand | NYI |
| Compatible Phone Models | Harman Kardon Onyx Studio, Harman Kardon Onyx Studio 2, Harman Kardon Onyx Studio 3, Harman Kardon Onyx Studio 4 |
| Customer Reviews | 4.5 out of 5 stars 215 Reviews |
| Item Weight | 0.11 kg |
| Manufacturer | MSW (Shenzhen) Technology Limited |
| Model Name | Battery |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Recommended Uses For Product | Speaker |
| Reusability | Rechargeable |
| UPC | 735818081773 |
| Unit Count | 1 Count |
| Voltage | 3.7 volts |
| Warranty Description | 1 year warranty |
T**X
Easy to replace, great battery life.
Works great! My two Onyx 3 speakers were down to 30 minutes playtime. It took less than 10 minutes with each speaker to put in the new batteries. The screws on the Onyx 3 are standard Phillips. Iโve only tested one so far because after 5 hours it was still playing strong, I believe the second speaker will be just was strong. With the Onyx 3 the battery case screws are slightly shorter than the speaker case screws, just keep them separate.
R**.
Fit and works
Fit and works perfectly
P**H
Great replacement
Easy replacement for the original battery. Got my speaker back up and working. Would recommend this to everybody.
K**N
Work great quality
Excellent work as expected
T**C
Outstanding Replacement
This was a perfect replacement for a Harmon Kardon Onyx Bluetooth speaker. It has a larger capacity and requires a longer charge, but that is fine with me.
J**S
Great Replacement Battery for Greaty Quality Speaker
Instructions were clear and easy to follow, with tools included with the battery. Excellent.
T**H
Doesnโt take a charge after 2 months.
Battery Stopped hold a charge after 2 months. Contacted Manufacturer about warranty and still have gotten a response.
J**R
Works and is an easy upgrade.
Fit well and was the easiest repair I've ever performed. Am very pleased with this repair kit that gave new life to my favorite speaker.
Trustpilot
2 months ago
2 weeks ago