7.7V, Li-Polymer, 4650mAh, Notebook, Laptop battery fits Thunderobot, L140BAT-2, MixBook Air, 35.81Wh
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.
Technical Specifications
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
Designed for Thunderobot notebooks requiring a slim internal Li-Polymer battery pack.
Compatible Part Numbers
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.
Want Instant Shipping Costs?
Want Instant Shipping Costs?
🚚 Instant Shipping Costs?
It’s super simple! Just add the product you want to your cart, enter the quantity and your postal code, and you'll instantly see real-time shipping rates for all in-stock items. Fast, easy, and totally hassle-free!
💡 Shipping heavy or bulk items?
If your order includes multiple heavy products, we recommend requesting a custom quote — we may be able to arrange a better rate with a transport truck!
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?
🔋 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
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!!
How to Look after your new lithium battery!!
See how to look after your battery if its lithium Lithium Care
Delivery and Shipping
Delivery and Shipping
See our shipping policy and details at this link Shipping Details
ADVISORY:- ABOUT OUR IMAGES
📸 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:
POST YOUR IMAGETechnical Specifications
| 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 |
Battery Cross Reference
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.







