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Cameron Sino Technology Limited  |  SKU: CS-HKE300SL  |  Barcode: 4894128144960

3.7V, Li-ion, 2600mAh, Speaker battery fits Harman/kardon, Onyx Studio 3, 9.62Wh

⭐For further information about stock levels see the notes below⭐
Regular price $23.91 CAD

CS-HKE300SL Speaker Battery (2600mAh) – Premium Replacement for Harman/Kardon Onyx Studio 3

Enhance your audio experience with the Cameron Sino CS-HKE300SL replacement battery, designed for optimal compatibility with the Harman/Kardon Onyx Studio 3 speaker. Featuring a powerful 2600mAh capacity and 3.7V Li-ion cell, this battery delivers 9.62Wh of reliable energy, ensuring extended playtime and crystal-clear sound whether at home or on the go.

Compatible Models

  • Harman/Kardon: Onyx Studio 3

Compatible Part Numbers

  • Harman/Kardon: PR-633496

Key Features & Benefits

  • Premium Battery Performance: Built with high-grade lithium-ion cells for long-lasting and efficient power delivery.
  • Perfect Fit & Compatibility: Precisely engineered to match the original battery for seamless installation.
  • Lightweight & Compact: Compact design measuring 69.26 x 20.40 x 20.40mm and weighing only 52g (1.83oz), ideal for portability.
  • Durable & Reliable: Manufactured under strict ISO 9001-certified standards for safety and longevity.
  • Enhanced Listening Experience: Maintain premium sound quality with uninterrupted power for your Onyx Studio 3.

Product Specifications

  • Battery Type: Li-ion
  • Capacity: 2600mAh
  • Voltage: 3.7V
  • Energy Rating: 9.62Wh
  • Color: Black
  • Dimensions: 69.26 x 20.40 x 20.40mm
  • Net Weight: 52.0g / 1.83oz
  • Gross Weight: 77g / 2.72oz
  • EAN Code: 4894128144960

Warranty & Returns

  • 1-Year Replacement Warranty: Guaranteed satisfaction and battery reliability.
  • 30-Day Return Policy: Hassle-free returns if it doesn’t meet your expectations.

Important: Please verify your Harman/Kardon Onyx Studio 3 model and battery part number (PR-633496) before purchase to ensure compatibility. Our customer support team is happy to assist with any questions.

🔋 Upgrade your speaker’s performance with the CS-HKE300SL battery today and enjoy uninterrupted music with premium power support!

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Please note: We reserve the right to send heavier items by transport truck if the carrier's maximum weight per package is exceeded or if we consider it too risky to place with a courier due to the possibility of damage occurring.

🔋 What’s mAh All About?

mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨

Before ordering please read

Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.

How to Look after your new lithium battery!!

See how to look after your battery if its lithium Lithium Care

Delivery and Shipping

See our shipping policy and details at this link Shipping Details

📸 Send Us Your Battery Image

Not sure which replacement battery you need? Just snap a Photo / Video of your current battery and send it our way! Our team will quickly identify the exact match and recommend the perfect replacement model — no guesswork, no hassle.

🔍 Fast, Expert Assistance

We’ve helped thousands of customers find the right battery — let us do the same for you. Whether it’s for an alarm system, emergency light, or industrial equipment, we’ve got you covered.

📤 Click below to post your image and get started:

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