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Cameron Sino Technology Limited  |  SKU: CS-MRT300XL  |  Barcode: 4894128226116

7.4V, Li-ion, 3400mAh, Speaker battery fits Marshall, B0797, Emberton 3, Emberton III, 25.16Wh

⭐For further information about stock levels see the notes below⭐
Regular price $45.30 CAD

Cameron Sino CS-MRT300XL Battery for Marshall Emberton 3 / III – 3400mAh 7.4V Li-ion Replacement

Restore your speaker’s performance with the high-quality Cameron Sino CS-MRT300XL replacement battery, engineered specifically for Marshall Emberton 3 / Emberton III speakers. Delivering a powerful 3400mAh capacity and stable 7.4V output, this premium Li-ion battery ensures extended playback time, reliable performance, and a precise fit for seamless installation.

3400mAh Capacity 7.4V Output 25.16Wh Energy Li-ion Rechargeable

Technical Specifications

ModelCS-MRT300XL
BrandCameron Sino
Battery TypeLi-ion (Rechargeable)
Voltage7.4V
Capacity3400mAh
Energy25.16Wh
ColourBlue
Dimensions69.50 x 38.20 x 20.30mm
Net Weight101g
Gross Weight126g
EAN4894128226116

Why Choose This Battery?

  • Extended Playback Time: 3400mAh capacity ensures longer listening sessions without interruption.
  • Stable Power Output: Reliable 7.4V / 25.16Wh performance for consistent audio quality.
  • Premium Li-ion Cells: Built using high-grade materials for durability and efficiency.
  • Safe & Reliable: Protection against overcharge, overheating, and short-circuiting.
  • Perfect Fit Design: Engineered specifically for Marshall Emberton models.
  • Easy Installation: Direct replacement battery with no modifications required.

Compatible Models

Marshall Emberton 3 Marshall Emberton III

Always verify your existing battery model and dimensions before purchasing to ensure compatibility.

Compatible Part Numbers

Marshall B0797

Typical Applications

  • Portable Bluetooth speakers
  • Marshall Emberton series speakers
  • Audio and entertainment devices
  • Rechargeable consumer electronics
  • Portable music systems

CS-MRT300XL Battery FAQs

  • Is this battery rechargeable?
    Yes, this is a rechargeable Li-ion battery designed for repeated use.
  • Is this a direct replacement for the original battery?
    Yes, it is designed to match the original specifications for compatible Marshall Emberton models.
  • Will a higher mAh battery damage my device?
    No, as long as voltage and fit match, a higher capacity simply provides longer runtime.
  • Does this include installation tools?
    No, battery only. Professional installation is recommended if unsure.

Product Highlights

  • Capacity: 3400mAh
  • Voltage: 7.4V
  • Energy: 25.16Wh
  • Chemistry: Li-ion
  • Colour: Blue
  • Precision Fit: Designed for Marshall Emberton series
  • Brand: Cameron Sino

Warranty & Returns

  • 30-Day Returns: Hassle-free return policy for peace of mind.
  • 1-Year Warranty: Full replacement warranty against defects.
  • Quality Guaranteed: Tested for safety, performance, and reliability.

Reliable Power for Your Marshall Speaker

The Cameron Sino CS-MRT300XL is a dependable, high-performance replacement battery designed to keep your Marshall Emberton speaker running at its best. With long-lasting power, stable output, and precision engineering, it’s the ideal solution for restoring your speaker’s battery life and performance.

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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.

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