--- product_id: 661323528 title: "Replacement LI11B001F Battery 3500mAh for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker with Tool Kits" brand: "uwayor" price: "¥25737" currency: JPY in_stock: true reviews_count: 5 category: "Uwayor" url: https://www.desertcart.jp/products/661323528-replacement-li11b001f-battery-3500mah-for-harman-kardon-onyx-studio-1 store_origin: JP region: Japan --- # 3.7V stable voltage output 3500mAh high-capacity power 1000+ recharge cycles eco-friendly Replacement LI11B001F Battery 3500mAh for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker with Tool Kits **Brand:** uwayor **Price:** ¥25737 **Availability:** ✅ In Stock ## Summary > 🔋 Power up your vibe—never miss a beat with the ultimate Onyx Studio battery upgrade! ## Quick Answers - **What is this?** Replacement LI11B001F Battery 3500mAh for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker with Tool Kits by uwayor - **How much does it cost?** ¥25737 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/661323528-replacement-li11b001f-battery-3500mah-for-harman-kardon-onyx-studio-1) ## Best For - uwayor enthusiasts ## Why This Product - Trusted uwayor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built-In Safety:** Advanced multi-layer protection guards against overcharge, short circuits, and overheating for peace of mind. - • **Power That Lasts:** 3500mAh capacity fuels your Onyx Studio for extended jam sessions without compromise. - • **Eco-Smart Rechargeable:** Rechargeable lithium-ion tech with zero memory effect means you save money and the planet. - • **Seamless Compatibility:** Specifically engineered for Harman/Kardon Onyx Studio 1/2/3/4 models—plug and play perfection. - • **Installation Made Manageable:** Includes essential tool kit and installation tips to get your speaker back to life with minimal hassle. ## Overview This LI11B001F replacement battery delivers a robust 3500mAh capacity at 3.7V, designed exclusively for Harman/Kardon Onyx Studio 1 through 4 wireless speakers. Engineered with rechargeable lithium-ion cells, it supports over 1000 charge cycles and integrates comprehensive safety protections to ensure durability and reliability. The package includes a handy tool kit for straightforward installation, making it the perfect eco-friendly upgrade to revive your premium audio experience. ## Description Specification: Type: Rechargeable Li-ion Battery can be cycled over 1000 times Model: LI11B001F Voltage: 3.7V Capatity: 3500mAh Size: 2.68*0.67Inch(6.8*1.7cm) Compatible Models: High quality replacement battery for Harman/Kardon Onyx Studio 1/2 / 3/4 Wireless Bluetooth Speaker LI11B001F What You Get : 1 x Replacement Battery LI11B001F, with Tool Kits Note: 1.Please first check your old battery model to ensure that this is the correct replacement battery. 2.Do not dispose of battery in fire as they may explode, battery may also exploded if damaged. 3.Do not expose the battery to liquid or subject to strong mechanical shocks. Review: Works Well - Installation of all batteries can be tricky - don't give up - This works as anticipated, the installation can be a bit tricky, but it is easily workable with a limited number of tools. A couple of suggestions for installation. Watch the installation videos, like on Youtube. Put in the model of your speaker and then 'batter replacement'. Several will come up and they are really helpful. A couple of tips for the HK Onyx Studio 4 specifically, since I didn't find many videos on that specific model. They switched from Torx to Philips screws which is easier if you don't already have a set of Torx screwdrivers. After you get the initial cover off the speaker, there are five rubber grommets, you need to remove each of the rubber gromets (I used the tool with the battery and a pair of needle nose pliers. Be careful, but firm to remove them. The Philips head screws are under those grommets to remove the case. It is much easier to gently remove the two plug wires from the control board then trying to keep them connected. This specific battery has a shorter cord than the original, which isn't a problem, but when you remove the foam from the old battery wire, you need to wrap it slightly differently on this replacement to make sure the extra small tab of foam wrap goes into the opening from the batter compartment. The wires on this replacement are thinner and shorter than the original battery. Not an issue, but to be aware of while rewrapping the foam. Some people will be tempted to skip removing the foam from the old battery wire and putting it on this one. The foam makes it so that the battery cord doesn't vibrate. There are few things more annoying than listening to music with a vibration from within the battery. Finally, when reassembling, it is easier to attach the longer wire (the wide plug) first, and then the battery plug wire onto the control board. In general, I would recommend this. It is slightly smaller then the original battery and yet provides longer battery life than the original, which is pictured here. Review: Perfect!! - My speaker works again! I’m so happy! ## Features - 【Compatible Models】High quality replacement battery for Harman/Kardon Onyx Studio 1/2 / 3/4 Wireless Bluetooth Speaker LI11B001F. - 【Battery Specifications】2.68*0.67Inch(6.8*1.7cm), Voltage: 3.7V, Capacity: 3500mAh. Environmental protection rechargeable and no memory effect, this battery can be cycled over 1000 times, use rechargeable battery can save money. - 【Perfect Replace】LI11B001F Battery perfect replace your original batteries. So first check your old battery model to ensure that this is the correct replacement battery. - 【Safety Protection】Rechargeable Lithium-ion battery pack, long lasting and durable. Built-in over charge protection, over current protection, over voltage protection, short circuit protection, over-heating protections, which will help lengthen battery life. - 【What You Get】1 x Replacement Battery LI11B001F, our product for 30 days free refund. If you have any problems, please feel free to contact us. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B8RZQZ3K | | Amperage | 3500 Amps | | Antenna Location | Speaker | | Battery Capacity | 3500 Milliampere Hour (mAh) | | Battery Cell Type | Lithium Ion | | Battery Weight | 60 Grams | | Battery capacity | 3500 Milliampere Hour (mAh) | | Battery cell composition | Lithium Ion | | Brand | Uwayor | | Brand Name | Uwayor | | Compatible Phone Models | for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker | | Customer Reviews | 4.5 out of 5 stars 121 Reviews | | Item Dimensions | 20 x 10 x 10 millimetres | | Item Type Name | LI11B001F Battery | | Manufacturer | Uwayor | | Model Name | LI11B001F Battery | | Model Number | LI11B001F | | Number of Batteries | 1 Lithium Ion batteries required. (included) | | Number of batteries | 1 Lithium Ion batteries required. (included) | | Recommended uses for product | Speaker | | Reusability | Rechargeable | | Unit Count | 1.0 count | | Unit count | 1.0 count | | Voltage | 3.7 Volts | ## Product Details - **Battery capacity:** 3500 Milliampere Hour (mAh) - **Battery cell composition:** Lithium Ion - **Brand:** Uwayor - **Number of batteries:** 1 Lithium Ion batteries required. (included) - **Recommended uses for product:** Speaker ## Images ![Replacement LI11B001F Battery 3500mAh for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker with Tool Kits - Image 1](https://m.media-amazon.com/images/I/61hlm3-FGkL.jpg) ![Replacement LI11B001F Battery 3500mAh for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker with Tool Kits - Image 2](https://m.media-amazon.com/images/I/71-wLY9cidL.jpg) ![Replacement LI11B001F Battery 3500mAh for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker with Tool Kits - Image 3](https://m.media-amazon.com/images/I/71jJ6kSQwUL.jpg) ![Replacement LI11B001F Battery 3500mAh for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker with Tool Kits - Image 4](https://m.media-amazon.com/images/I/71zkUSQjRqL.jpg) ![Replacement LI11B001F Battery 3500mAh for Harman/Kardon Onyx Studio 1/2/ 3/4 Wireless Bluetooth Speaker with Tool Kits - Image 5](https://m.media-amazon.com/images/I/61UdozJ8cyL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Well - Installation of all batteries can be tricky - don't give up *by R***E on 16 August 2025* This works as anticipated, the installation can be a bit tricky, but it is easily workable with a limited number of tools. A couple of suggestions for installation. Watch the installation videos, like on Youtube. Put in the model of your speaker and then 'batter replacement'. Several will come up and they are really helpful. A couple of tips for the HK Onyx Studio 4 specifically, since I didn't find many videos on that specific model. They switched from Torx to Philips screws which is easier if you don't already have a set of Torx screwdrivers. After you get the initial cover off the speaker, there are five rubber grommets, you need to remove each of the rubber gromets (I used the tool with the battery and a pair of needle nose pliers. Be careful, but firm to remove them. The Philips head screws are under those grommets to remove the case. It is much easier to gently remove the two plug wires from the control board then trying to keep them connected. This specific battery has a shorter cord than the original, which isn't a problem, but when you remove the foam from the old battery wire, you need to wrap it slightly differently on this replacement to make sure the extra small tab of foam wrap goes into the opening from the batter compartment. The wires on this replacement are thinner and shorter than the original battery. Not an issue, but to be aware of while rewrapping the foam. Some people will be tempted to skip removing the foam from the old battery wire and putting it on this one. The foam makes it so that the battery cord doesn't vibrate. There are few things more annoying than listening to music with a vibration from within the battery. Finally, when reassembling, it is easier to attach the longer wire (the wide plug) first, and then the battery plug wire onto the control board. In general, I would recommend this. It is slightly smaller then the original battery and yet provides longer battery life than the original, which is pictured here. ### ⭐⭐⭐⭐⭐ Perfect!! *by S***G on 27 May 2026* My speaker works again! I’m so happy! ### ⭐⭐⭐⭐⭐ Worth it. *by T***C on 12 March 2026* Made my speaker wireless again. Installation videos available on youtube. ## Frequently Bought Together - Uwayor Replacement Battery for Harman Kardon Onyx, 3500mAh Battery for Harman Kardon Onyx Studio 1, Onyx Studio 2, Onyx Studio 3, Onyx Studio 4 Bluetooth Speaker, LI11B001F Battery with Tool Kits - Charger for Harman Kardon Onyx Studio 8 7 6 5 4 3 2 1 Wireless Bluetooth Portable Speaker Compatible with Harman Kardon Charger 19V 38W AC Charger Fast Replacement Power Adapter - Replacement Legs for Harman Kardon Onyx Studio 1 and 2 Speakers (Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/661323528-replacement-li11b001f-battery-3500mah-for-harman-kardon-onyx-studio-1](https://www.desertcart.jp/products/661323528-replacement-li11b001f-battery-3500mah-for-harman-kardon-onyx-studio-1) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-07*