B21N1329 Laptop Battery - 7.2V 3800mAh 4-Cell Li-Ion
€24.99
Tax included
The B21N1329 battery is a lithium-ion replacement with a capacity of 3800 mAh and a voltage of 7.2V. Designed for laptops using this part number, it is a new part, comes with a 3-year warranty, and is shipped from Spain within 24-48 hours.
B21N1329
B21N1329 Laptop Battery - 7.2V 3800mAh 4-Cell Li-Ion
Li-Ion replacement battery with 3 years warranty. New and shipped from Spain.
- 3800 mAh / 7.2V
- 4 Li-Ion Cells
- New
Key features
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Capacity
3800 mAh to restore your device's original autonomy.
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Nominal Voltage
7.2V, ensuring electrical compatibility with designated models.
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Cell Technology
4 Lithium-Ion (Li-Ion) cells for stable performance.
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Protection Circuits
Integrated to protect against overvoltage and undervoltage.
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Condition
Completely new component, checked for optimal operation.
Product description
The laptop battery with part number B21N1329 is a reliable and durable replacement solution for your device. It is manufactured with 4 high-quality lithium-ion (Li-Ion) cells, providing a total capacity of 3800 mAh and a voltage of 7.2V.
To ensure the safety of both the user and the laptop, this battery integrates protection circuits against overvoltage and undervoltage, preventing damage to the internal components of the device. It is a completely new product, checked in our technical service to ensure its correct functioning.
Before making the purchase, it is essential to verify that the part number B21N1329 matches that of your original battery to ensure perfect compatibility. Also compare the voltage and physical shape with the product images.
For guaranteed compatibility, remove your current battery and check that the part number printed on the label is B21N1329. Comparing the voltage (7.2V) and physical shape with the product images is an additional recommended step to avoid purchase errors.
Who is this product for?
For technical services and individual users who need to replace their laptop's depleted or defective battery, restoring its autonomy.
Ideal for
- Replacement of an original B21N1329 battery that no longer holds a charge.
- Restoring autonomy in a laptop for mobile use.
- Repairing a device that does not turn on without being connected to power.
- Replacement of a swollen or faulty battery.
Technical specifications
| Capacidad | 3800 mAh |
|---|---|
| Voltaje | 7.2 V |
| Cell Technology | Li-Ion |
| Number of Cells | 4 |
| Color | Black |
|---|---|
| Protección contra sobretensión | Yes |
| Protección contra bajada de tensión | Yes |
| Condition | New |
|---|---|
| Warranty | 3 years (1 year for professionals) |
Frequently asked questions
How do I know if this B21N1329 battery is compatible with my laptop?
The safest way is to remove your laptop's current battery and check the part number printed on the label. If it matches B21N1329, this battery is correct. It is also important to verify that the voltage (7.2V) and physical shape of the battery are identical to yours. If you have doubts, you can contact our technical support.
Do I need to calibrate the battery the first time I use it?
Yes, it is highly recommended. To calibrate the new battery, charge it completely to 100% with the laptop turned off. Then, turn it on and use it on battery until it fully discharges and the device turns off. Finally, recharge it to 100% without interruptions. This process helps the operating system display the real charge level and optimizes its lifespan.
How many hours of autonomy will this battery provide?
Autonomy depends on many factors, such as the laptop model, screen brightness, and programs in use. This 3800 mAh battery is designed to restore the original autonomy of the device when it was new. The exact duration in hours will vary depending on how you use the computer.
What warranty does it have and what do I do if it doesn't work or fit?
The battery has a 3-year warranty for private customers and 1 year for professionals. If upon receipt it is not compatible or has any defect, you have 14 days to return it. You can manage the return yourself or request a home collection 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-AS80
2 Items
Data sheet
- CG. Reference
- B21N1329
- CG. Type of piece
- Laptop Battery
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 7.2V
- CB. Number of cells
- 4
- CB. Cell technology
- Li-Ion
- CB. Color
- Black
- CB. Capacity
- 3800 mAh
- CB. Overload protection
- Yeah.
Yes
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B21N1329 replacement battery for laptop. Offers 7.2V and 3800 mAh capacity with 4 Li-Ion cells. Includes overvoltage and undervoltage protection. New product with 3 years warranty.
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