Battery 45N1749 for Lenovo Laptop - 7.4V 4500mAh 3 Cells Li-Poly
€70.99
The 45N1749 battery is a compatible replacement for Lenovo laptops with a capacity of 4500mAh and 7.4V. It is equivalent to part numbers 45N1750 and 45N1751, ensuring a direct replacement. It is a new product, with a 3-year warranty and shipping from Spain in 24-48 hours.
45N1749
45N1749 Battery for Lenovo Laptop - 7.4V 4500mAh 3 Cells Li-Poly
Compatible replacement battery, new and with a 3-year warranty.
- 4500 mAh / 7.4V
- 3 Li-Polymer Cells
- New and Compatible
Key features
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Capacidad
4500 mAh for extended battery life
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Voltaje
7.4V, specific for compatible Lenovo models
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Cell Technology
3 Lithium Polymer (Li-Po) cells for greater durability
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Protección Integrada
Overvoltage and undervoltage protection circuits for safe use
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Direct Compatibility
Replacement for 45N1749, 45N1750 and 45N1751
Product description
The replacement battery with reference 45N1749 is the ideal solution to restore battery life in compatible Lenovo laptops. Designed to meet manufacturer specifications, it offers a capacity of 4500 mAh and a voltage of 7.4V, guaranteeing reliable and durable performance.
Built with 3 high-quality lithium polymer (Li-Po) cells, this battery incorporates protection circuits against overvoltage and voltage drops, ensuring safe operation for both the component and the computer. Its Li-Po technology provides excellent energy density in a lightweight and safe format.
It is a direct replacement for part numbers 45N1749, 45N1750 and 45N1751. Each unit is verified by our technical service before shipment, making it a reliable choice for repair services and for users who perform the replacement themselves. This is a new product with a 3-year warranty.
All our compatible batteries are individually verified by our technical team to ensure proper operation and capacity before being shipped. This guarantees that every customer receives a reliable product ready to install.
Who is this product for?
For technical services and private users who need to replace the depleted battery of a compatible Lenovo laptop to restore its battery life.
Ideal for
- Replacement of original battery 45N1749 in a Lenovo laptop.
- Repair of laptops that no longer hold a charge.
- Preventive maintenance on equipment with degraded batteries.
- Replacement for batteries with part numbers 45N1750 or 45N1751.
Technical specifications
| Capacidad | 4500 mAh |
|---|---|
| Voltaje | 7.4 V |
| Number of Cells | 3 |
|---|---|
| Tecnología | Li-Poly (Polímero de litio) |
| Color | Negro |
| Protecciones | Contra sobretensión y subtensión |
|---|---|
| Condition | New |
| Warranty | 3 Years |
Compatibility
Compatible part numbers
- 45N1749
- 45N1750
- 45N1751
Always check the part number printed on your original part before ordering; if in doubt, contact us with the exact model of your device.
Frequently asked questions
How do I know if this battery is compatible with my Lenovo laptop?
To ensure compatibility, the most reliable way is to remove the original battery and check the part number printed on it. If it matches 45N1749, 45N1750 or 45N1751, this battery is the correct replacement. You can also compare the voltage (7.4V) and physical shape with the product images.
Is it necessary to calibrate the battery the first time it is used?
Yes, for optimal performance an initial calibration cycle is recommended. Charge the battery to 100%, let it rest for an hour, then discharge it completely by using it until the laptop turns off on its own. Finally, recharge it to 100% without interruptions. This helps the system recognize the actual capacity.
Approximately how much battery life does this battery offer?
Battery life depends on the laptop model, its configuration, and the usage (browsing, video, etc.). With 4500mAh, this battery aims to match or exceed the original battery life when it was new. Generally, you can expect several hours of moderate use.
What warranty does it have and how can I return it if it is not the correct one?
We offer a 3-year warranty for private individuals (1 year for professionals). If the battery is not compatible, you have 14 days to return it. You can manage the return shipping on your own or request a home pickup for 8,90 € in Spain and Portugal, which will be deducted from the refund.
Warranty, returns and shipping
- Warranty: 3-year warranty (1 year for business customers)
- Returns: 14-day returns (ship it yourself or €8.90 home pickup in Spain and Portugal)
- Shipping: EU delivery 48-120 h
- Condition: New
BAT-LE110
1 Item
Data sheet
- CG. Reference
- 45N1749
- CG. Type of piece
- Laptop Battery
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 7.4 V
- CB. Number of cells
- 3
- CB. Cell technology
- Li-Polymer
- CB. Color
- Black
- CB. Capacity
- 4500 mAh
- CB. Overload protection
- Yeah.
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Batería de repuesto 45N1749 para portátiles Lenovo. Ofrece 4500mAh de capacidad y 7.4V de voltaje con 3 celdas de polímero de litio. Compatible con los part numbers 45N1750 y 45N1751. Producto nuevo con 3 años de garantía.
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