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Cameron Sino Technology Limited  |  SKU: CS-ETC800SL  |  Barcode: 4894128121787

3.7V, Li-Polymer, 950mAh, Headset battery fits Eartec, Cs-800li, Comstar Wireless Headsets, 3.52Wh

🚨 Only 2 Left in stock at our Burlington, Ontario warehouse! Stock is disappearing fast! Pickup NOT available for this product
Sale price $20.00 CAD Regular price $31.99
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Technical Specifications

Cameron Sino CS-ETC800SL Replacement Battery for Eartec Headsets
Battery Details
Category Headset Battery
Battery Chemistry Li-Polymer
Capacity 950mAh
Voltage 3.7V
Energy Rating 3.52Wh
Dimensions 43.00 × 35.80 × 13.00mm
Weight 52g
Colour Black
Compatibility
Compatible Brand Eartec
Compatible Model Comstar Wireless Headsets
OEM Part Number CS-800LI
Warranty & Support
Warranty 12 Month Replacement Warranty
Return Period 30 Day Return Policy
The Cameron Sino CS-ETC800SL battery is designed to deliver reliable power for Eartec wireless communication systems. Built with premium Li-Polymer cells, it provides stable voltage, dependable runtime, and safe operation for professional communication headsets used in broadcast, events, and production environments.
Latest Update: March 2026

OEM Battery Cross Reference

Device Model Original Battery Replacement
Eartec Comstar Wireless Headset CS-800LI Cameron Sino CS-ETC800SL
Eartec Comstar Full Duplex System CS-800LI Cameron Sino CS-ETC800SL
Eartec Comstar Intercom Headset CS-800LI Cameron Sino CS-ETC800SL
Eartec Comstar Wireless Intercom CS-800LI Cameron Sino CS-ETC800SL
Eartec Comstar Production Headset CS-800LI Cameron Sino CS-ETC800SL
This replacement battery is compatible with devices using OEM battery part number CS-800LI. If your Eartec Comstar wireless headset appears above, the Cameron Sino CS-ETC800SL is a direct compatible replacement battery.

🔋 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. 💪✨

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.

** Please note:- We only supply the batteries shown in the images, We show images of the products that they fit as a reference. **

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.

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Cameron Sino CS-ETC800SL Replacement Battery for Eartec Headset – 950mAh / 3.52Wh

High-performance 3.7V Li-Polymer replacement battery engineered for Eartec wireless headsets. Designed for dependable runtime, stable output, and seamless compatibility during extended communication sessions.

950mAh Capacity 3.7V Output 3.52Wh Li-Polymer Technology

Technical Specifications

ModelCS-ETC800SL
Battery TypeLi-Polymer
Voltage3.7V
Capacity950mAh
Energy3.52Wh
ColourBlack
Dimensions43.00 x 35.80 x 13.00 mm
Net Weight27.0g
Gross Weight52g
EAN4894128121787

Key Benefits

  • Extended Usage Time: 950mAh capacity supports longer headset operation and reduces downtime.
  • Stable 3.7V Output: Ensures consistent audio and communication performance.
  • Premium Li-Polymer Cells: Lightweight, efficient, and built for reliable recharge cycles.
  • Safe & Reliable: Designed to help prevent overcharging, overheating, and short-circuiting.
  • Precision Fit: Engineered specifically for compatible Eartec headset models.

Compatible Models

Eartec

Comstar Wireless Headsets

Designed for seamless integration with Eartec communication systems.

Replaces Part Numbers

Eartec

CS-800LI

Warranty & Returns

  • 30-Day Return Policy
  • 1-Year Replacement Warranty

Please verify your existing battery model and part number before ordering to ensure proper fitment.

Reliable Power for Professional Communication

Choose the Cameron Sino CS-ETC800SL for dependable, long-lasting power in your Eartec wireless headset system—keeping your team connected and operations running smoothly.

ADVISORY:- ABOUT OUR IMAGES

Please note that the images displayed on our product page serve as a visual reference and may not perfectly represent the final product you receive. Variations can occur due to lighting, photographic angles, or minor design updates. We strive to ensure the accuracy of these images, but slight differences in colour, dimensions, or design details may exist. We appreciate your understanding and are committed to ensuring your satisfaction with the products you receive.

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