---
product_id: 658766704
title: "NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker"
brand: "nyi"
price: "$226.53"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/658766704-nyi3500mah-replacement-battery-for-harman-kardon-onyx-studio-1-2
store_origin: EC
region: Ecuador
---

# 3.7V stable voltage output 3500mAh high-capacity power Advanced multi-layer safety protection NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker

**Brand:** nyi
**Price:** $226.53
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your vibe, never miss a beat!

## Quick Answers

- **What is this?** NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker by nyi
- **How much does it cost?** $226.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/658766704-nyi3500mah-replacement-battery-for-harman-kardon-onyx-studio-1-2)

## Best For

- nyi enthusiasts

## Why This Product

- Trusted nyi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Built-in safeguards against overcharge, over-discharge, overheating, and short circuits.
- • **All-in-One Kit:** Comes with tools and adhesive tapes for a hassle-free DIY battery swap.
- • **Power That Lasts:** 3500mAh Li-ion battery keeps your Onyx Studio booming longer than ever.
- • **Peace of Mind Warranty:** 12-month warranty plus 24/7 expert support ensures zero downtime.
- • **Seamless Compatibility:** Fits perfectly with Harman Kardon Onyx Studio 1-4 models despite size tweaks.

## Overview

This 3500mAh 3.7V Li-ion replacement battery is engineered for Harman Kardon Onyx Studio 1 through 4 wireless speakers, delivering extended playtime with robust safety features and a complete installation kit, backed by a 12-month warranty and round-the-clock customer support.

## Description

NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker

## Features

- 【Compatible with】Harman Kardon Onyx Studio, Onyx Studio-1 Studio-2, Studio-3, Studio-4 Wireless Bluetooth Speaker.NOTE: The diameter of this replacement battery is smaller than original one of Studio-4, but do not worry, it will fit and work well.
- 【High Capacity】3500mAh Li-ion replacement battery; Battery voltage: 3.7V / 12.95Wh
- 【High Quality & Safety】 High quality, no memory effect, over-charge, over-discharge, over-heat, over-current and short-circuit protection
- 【Package includes】1 pc replacement battery, 2 pcs tools, 2 pcs adhesive tapes
- 【After-sales Service】12 months warranty.24*7 email support. Your satisfaction is important to us, please feel free to contact us with any question

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09C25691F |
| Antenna Location | Speaker |
| Battery Capacity | 3500 Milliamp Hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 140 Grams |
| Best Sellers Rank | #112,432 in Electronics ( See Top 100 in Electronics ) #2,326 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 | 4.6 out of 5 stars 204 Reviews |
| Item Weight | 0.11 Kilograms |
| 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 | 1.0 Count |
| Voltage | 3.7 Volts |
| Warranty Description | 1 year warranty |

## Product Details

- **Number of batteries:** 1 Lithium Ion batteries required.
- **Brand:** NYI
- **Battery cell composition:** Lithium Ion
- **Battery capacity:** 3500 Milliampere Hour (mAh)
- **Recommended uses for product:** Speaker

## Images

![NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker - Image 1](https://m.media-amazon.com/images/I/7148tIm5C0L.jpg)
![NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker - Image 2](https://m.media-amazon.com/images/I/71geqR+dDxL.jpg)
![NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker - Image 3](https://m.media-amazon.com/images/I/81mSxH7PikL.jpg)
![NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker - Image 4](https://m.media-amazon.com/images/I/71mFCoqF5GL.jpg)
![NYI3500mAh Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4/ li11b001f Wireless Bluetooth Speaker - Image 5](https://m.media-amazon.com/images/I/7161W-GMc3L.jpg)

## Questions & Answers

**Q: It says that I can't have this delivered to my address,  is it possible to have it delivered to a store like Oreilly's.**
A: Hello, if the logistics cannot deliver the NYI Harman Kardon Onyx Studio Battery Replacement to your address, you can try to change the address to an address that FBA can deliver. The specific operations are as follows:
1. You can open the purchase page of "[Upgraded 3500mAh] NYI Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker" on the computer, and click "pickup" in the upper right corner to select the shipping address that suits you.
Please note: This operation has a certain risk of losing goods, please use it with caution.
2. You can choose the address that Amazon can deliver to (such as your friend's house).

## Frequently Bought Together

- NYI [Upgraded 3500mAh] Replacement Battery for Harman Kardon Onyx Studio 1/2/ 3/4 Speaker
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**Shop now:** [https://www.desertcart.ec/products/658766704-nyi3500mah-replacement-battery-for-harman-kardon-onyx-studio-1-2](https://www.desertcart.ec/products/658766704-nyi3500mah-replacement-battery-for-harman-kardon-onyx-studio-1-2)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-05*