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Cameron Sino Technology Limited  |  SKU: CS-THM240NB  |  Barcode: 4894128224136

7.7V, Li-Polymer, 4650mAh, Notebook, Laptop battery fits Thunderobot, L140BAT-2, MixBook Air, 35.81Wh

⭐For further information about stock levels see the notes below⭐
Regular price $71.22 CAD
Shipping calculated at checkout.

Cameron Sino CS-THM240NB Replacement Battery for Thunderobot Notebook / Laptop – 4650mAh / 35.81Wh

High-performance Li-Polymer replacement battery engineered for Thunderobot laptops. Designed for reliable power delivery, extended runtime, and safe operation, making it the ideal solution for restoring your device’s performance.

4650mAh Capacity 7.7V Output 35.81Wh Li-Polymer Technology

Technical Specifications

ModelCS-THM240NB
Battery TypeLi-Polymer
Voltage7.7V
Capacity4650mAh
Energy35.81Wh
ColorBlack
Dimensions249.60 x 49.10 x 5.00mm
Net Weight135g
Gross Weight395g
EAN4894128224136

Key Benefits

  • Extended Runtime: 4650mAh capacity provides longer usage between charges.
  • Stable Power Output: Consistent 7.7V delivery for reliable laptop performance.
  • Lightweight Design: Slim Li-Polymer construction keeps your device portable.
  • Advanced Safety Protection: Built-in safeguards against overcharge, overheating, and short circuits.
  • Precision Fit: Designed specifically for Thunderobot laptops for seamless installation.
  • High-Quality Cells: Ensures long cycle life and dependable performance.

Compatible Models

MixBook Air

Designed for Thunderobot notebooks requiring a slim internal Li-Polymer battery pack.

Compatible Part Numbers

L140BAT-2

Warranty & Assurance

  • 30-Day Returns: Hassle-free return policy for peace of mind.
  • 1-Year Warranty: Replacement warranty for long-term reliability.

Always verify your original battery model and connector type before ordering.

Typical Applications

  • Thunderobot notebooks and ultrabooks
  • MixBook Air laptop systems
  • Portable computing devices requiring slim Li-Polymer batteries
  • Replacement for worn or degraded internal laptop batteries

Performance Highlights

  • Optimised for daily computing and extended sessions
  • Maintains stable voltage throughout discharge cycle
  • Efficient energy usage for improved battery life
  • Designed for consistent charging and discharging performance
  • Supports reliable operation in portable environments

Important Notice

This is a 7.7V Li-Polymer laptop battery and is not compatible with standard consumer batteries. Ensure compatibility with your original battery model (L140BAT-2) before installation to avoid damage to your device.

Reliable Power for Your Thunderobot Laptop

Restore your laptop’s performance with the Cameron Sino CS-THM240NB. Built for reliability, safety, and long-lasting power, it’s the perfect replacement solution for keeping your Thunderobot notebook running at its best.

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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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Technical Specifications

Cameron Sino CS-THM240NB Replacement Battery for Thunderobot MixBook Air
Battery Details
Category Notebook, Laptop
Battery Type Li-Polymer
Capacity 4650mAh
Voltage 7.7V
Energy 35.81Wh
Dimensions 249.60 x 49.10 x 5.00mm
Color Black
Gross Weight 395g
Warranty 1-Year Replacement Warranty
Return Policy 30-Day Return Policy
Compatibility
Compatible Brand Thunderobot
Confirmed Model MixBook Air
Compatible Part Number L140BAT-2
Built for Thunderobot notebook applications requiring a direct-fit internal replacement battery for confirmed MixBook Air compatibility.
Latest Update: 30 March 2026

Battery Cross Reference

Brand Device Model Original Battery Replacement
Thunderobot MixBook Air L140BAT-2 Cameron Sino CS-THM240NB
This replacement battery matches devices using original battery part number L140BAT-2 where the confirmed model is Thunderobot MixBook Air.
Confirmed model coverage

The following confirmed model is supported by this battery reference:

Thunderobot MixBook Air
Original battery reference

Confirmed original battery part number: L140BAT-2.

Match the battery number from the existing pack before replacement.

Replacement battery details

Replacement battery: Cameron Sino CS-THM240NB.

This replacement is intended for the confirmed model and part number shown in the cross-reference table above.

Technical summary

This battery is a 7.7V 4650mAh 35.81Wh Li-Polymer replacement pack.

Dimensions: 249.60 x 49.10 x 5.00mm. Color: Black.

Payment & Security

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