Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.
🔋 Power up your vibe—never miss a beat with Rapthor’s high-capacity battery!
The Rapthor Rechargeable 3500mAh Lithium Battery is a premium replacement power source designed specifically for Harman Kardon Onyx Studio 1-4 wireless Bluetooth speakers. It offers higher capacity than the original battery, ensuring extended playback time. Installation is streamlined with included tools, while protective features like foam cushioning and a built-in safety circuit guarantee durability and safe operation. This battery revives your speaker’s portability and performance with reliable, long-lasting power.
| ASIN | B099NJVQQ7 |
| Amperage | 3500 Milliamps |
| Best Sellers Rank | #62,841 in Electronics ( See Top 100 in Electronics ) #1,324 in Portable Bluetooth Speakers |
| Brand | rapthor |
| Built-In Media | Install tool, Replacement battery, Screwdriver |
| Color | black |
| Compatible Devices | Compatible with Harman Kardon Onyx Studio 1/2/3/4 |
| Compatible Phone Models | Compatible with Harman Kardon Onyx Studio 1/2/3/4 |
| Compatible Power Plug Type | No Plug |
| Compatible devices | Compatible with Harman Kardon Onyx Studio 1/2/3/4 |
| Compatible phone models | Compatible with Harman Kardon Onyx Studio 1/2/3/4 |
| Connectivity Technology | Bluetooth |
| Connector Type | Proprietary |
| Connector type | Proprietary |
| Current | DC |
| Current Rating | 3500 Milliamps |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.5 out of 5 stars 313 Reviews |
| Enclosure Material | Lithium-ion |
| Included components | Install tool, Replacement battery, Screwdriver |
| Input Voltage | 3.7 Volts |
| Item Weight | 0.11 Kilograms |
| Manufacturer | MSW (Shenzhen) Technology Limited |
| Model Name | Replacement Battery |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Output Current | 3.5 Amps |
| Output Voltage | 3.7 Volts |
| Portable | Yes |
| Power Plug | No Plug |
| Power Source | Battery Powered |
| Special Features | Rechargeable |
| Special features | Rechargeable |
| Specification Met | Li-ion Battery Standard, Higher Capacity, Easy to Install, Safe Performance |
| UPC | 735818080479 |
| Unit Count | 1.0 Count |
| Voltage | 3.7 Volts |
| Wattage | 12.95 watts |
| Wired Charging Connector Type | USB Type A |
H**O
Perfect for for my speaker
Perfect fit. My speaker is working again without the power cord. Watch YouTube videos for instructions on how to install.
M**B
Onyx 4 Replacement
Overall, I am pleased. Let me first say that the directions included did not support the Onyx 4. However, this was a pretty easy battery swap. Back screws are under the grommets that hold the screen. Didn’t need the driver that came with it. Just use a standard small Phillips driver. Battery came charged. My speaker was back to normal in a few minutes. Keep in mind that this is a smaller battery than that of the original as far as physical size. However, even if it doesn’t last as long, which it may, I’m very happy with this battery. I missed my portability. No issues here so far.
Q**E
Good replacement for the original battery!
My Harman/Kardon Onyx speaker is one of my favorites for rocking the bass while playing games or music. Yes, it is old now, but still worked great, except for one thing: the original battery no longer charged, so I was stuck with having to place the speaker near an AC source. Well, I finally got tired of that, so I looked for a replacement battery. This one got good reviews, had the necessary tools with it, was readily available, and was priced right. I'm listening to my wireless BT speaker right now, while I write this review. Very happy. If anything goes wrong, I'll let you know.
T**4
Concerning the Oynx Studio 4 Speaker Only
This was for a HK Onyx Studio 4 speaker only. Battery is slightly smaller than original but the adhesive foam cushioning takes up the difference in size, I also used pieces from the original battery to use as cushioning where wires get passed thru the battery housing. Supplied screwdriver and plastic tool were not any help for the Onyx 4, as screws are regular philips screws and there is no notch to use the plastic tool to pry the speaker cover off. I used a knife edge to get the prying started then used Nylon auto trim tool set to complete the removal. Gave a Four Star rating because two tools given do not help. Battery worked immediately when all hooked up but I am not sure how long it will last after charging.
K**N
Raptor 3500mAh battery kit
Good price for battery. Included tools and instructions for removing old battery and installing new battery. New battery has a higher capacity and fits perfectly in my Harmon Kardon Onyx 4 speaker.
Trustpilot
1 month ago
2 weeks ago