--- product_id: 406102328 title: "Rechargeable 3500mAh Lithium Battery Compatible with Harman Kardon Onyx Studio 1/2/3/4 Wireless Bluetooth Speaker" brand: "rapthor" price: "16283 som" currency: KGS in_stock: true category: "Rapthor" url: https://www.desertcart.kg/products/406102328-rechargeable-3500mah-lithium-battery-compatible-with-harman-kardon-onyx-studio store_origin: KG region: Kyrgyzstan --- # 3500mAh High Capacity Easy 10-min Installation Built-in Safety Circuit Rechargeable 3500mAh Lithium Battery Compatible with Harman Kardon Onyx Studio 1/2/3/4 Wireless Bluetooth Speaker **Brand:** rapthor **Price:** 16283 som **Availability:** ✅ In Stock ## Summary > 🔋 Power up your Onyx Studio with unstoppable energy! ## Quick Answers - **What is this?** Rechargeable 3500mAh Lithium Battery Compatible with Harman Kardon Onyx Studio 1/2/3/4 Wireless Bluetooth Speaker by rapthor - **How much does it cost?** 16283 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/406102328-rechargeable-3500mah-lithium-battery-compatible-with-harman-kardon-onyx-studio) ## Best For - rapthor enthusiasts ## Why This Product - Trusted rapthor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First, Always:** Advanced protection circuit guards against overcharge, over-discharge, and short circuits. - • **Plug & Play Simplicity:** Includes screwdriver and plastic tool for a hassle-free install under 10 minutes. - • **Seamless Compatibility:** Perfectly fits Harman Kardon Onyx Studio 1/2/3/4 models for flawless performance. - • **Power That Lasts Longer:** 3500mAh capacity outperforms the original for extended playtime. - • **Engineered for Durability:** Foam cushion and sponge tape protect cables, ensuring a secure, damage-free connection. ## Overview The Rapthor Rechargeable 3500mAh Lithium Battery is a high-capacity, safe, and durable replacement designed specifically for Harman Kardon Onyx Studio 1 through 4 wireless Bluetooth speakers. It features easy installation tools, enhanced cable protection, and built-in safety circuits to ensure long-lasting, reliable performance. ## Description Rapthor 3500mAh 3.7V High Power Rechargeable Replacement Battery for Harman/Kardon Onyx Studio, Onyx Studio 2, Onyx Studio 3, Onyx Studio 4 Wireless Bluetooth Speaker Compatibility Rapthor replacement battery is compatible with Harman Kardon Onyx Studio, Onyx Studio 2, Onyx Studio 3, Onyx Studio 4. Higher Capacity 3500mAh high power replacement battery extend longer-lasting working time to your bluetooth speaker. Easy to Install Quick install within 10 minutes with included screwdriver and plastic tool. It’s quite simple. Considerate Details Foam strip for cushion absorbing, super long (longer than original’s) and durable battery wire for better connection, sponge tape well protects the connector wire from damage. Safe Performance Built-in protection circuit well protects the rechargeable battery from over-charge, over-discharge, short-circuit. Customer Service 30-day money back and 12-month warranty Specifications Battery Type: Li-ion Product Type: Replacement Battery Capacity: 3500mAh Voltage: 3.7V / 12.95Wh Package Included 1 x Rapthor Replacement Battery 1 x Screwdriver 1 x Plastic Install Tool 1 x User Manual ## Features - 3500mAh High Capacity Lithium Battery: higher capacity than the original battery, more durable performance. - EASY TO USE - Simply install quickly with included screwdriver and plastic tool. - CONSIDERATE DETAILS - Foam strip to absorb the cushion, durable and longer than the original battery cable for better connection, the sponge tape protects the connector cable well from damage. - Safe Performance The built-in protection circuit protects the rechargeable battery well from overcharge, over discharge, short circuit. - Compatibility: Compatible with Harman Kardon Onyx Studio, Onyx Studio 2, Onyx Studio 3, Onyx Studio 4. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B099NJVQQ7 | | Amperage | 3500 Milliamps | | Best Sellers Rank | #50,613 in Electronics ( See Top 100 in Electronics ) #1,040 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 | | Connectivity Technology | Bluetooth | | Connector Type | Proprietary | | Current | DC | | Current Rating | 3500 Milliamps | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.5 4.5 out of 5 stars (313) | | Enclosure Material | Plastic | | 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 | | 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 | ## Product Details - **Amperage:** 3500 Milliamps - **Brand:** rapthor - **Colour:** 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 - **Connector type:** Proprietary - **Included components:** Install tool, Replacement battery, Screwdriver - **Input voltage:** 3.7 Volts - **Special features:** Rechargeable - **Wattage:** 12.95 watts ## Images ![Rechargeable 3500mAh Lithium Battery Compatible with Harman Kardon Onyx Studio 1/2/3/4 Wireless Bluetooth Speaker - Image 1](https://m.media-amazon.com/images/I/716QlRKgC-L.jpg) ## Questions & Answers **Q: Any feedback after using it for a while?** A: Sorry charged after it arrived and haven’t used it. So I don’t know how long it holds a charge ## Frequently Bought Together - Rapthor 3500mAh Rechargeable Replacement Battery Compatible with Harman Kardon Onyx Studio 1/2/3/4 Wireless Bluetooth Speaker - for Harman Kardon Charger Onyx Studio 8 7 6 5 4 3 2 1 Wireless Bluetooth Speaker Replacement Harmon Kardon Charger 19V AC Power Cord Supply【10 FT】 VHBW - 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 --- ## 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.kg/products/406102328-rechargeable-3500mah-lithium-battery-compatible-with-harman-kardon-onyx-studio](https://www.desertcart.kg/products/406102328-rechargeable-3500mah-lithium-battery-compatible-with-harman-kardon-onyx-studio) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-09-24*