Battery A42-K55 for Laptop - 10.8V 4400mAh 6 Cells Li-Ion
€27.99
Tax included
The A42-K55 battery is a compatible replacement for laptops with a capacity of 4400 mAh and a voltage of 10.8V. Equipped with 6 Li-Ion cells, it offers overvoltage protection. It is a brand new product, with a 3-year warranty and ships from Spain in 24-48 hours.
A42-K55
A42-K55 Laptop Battery - 10.8V 4400mAh 6 Cells Li-Ion
Li-Ion replacement battery with 3-year warranty. New and compatible.
- 4400 mAh
- 10.8V / 11.1V
- 6 Li-Ion Cells
- New
Key features
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Capacidad Nominal
4400 mAh for extended battery life, similar to the original.
-
Voltaje
10.8V, compatible with systems specifying 11.1V.
-
Quality Cells
6 Li-Ion cells for stable and durable performance.
-
Protección Integrada
Circuitos de protección contra sobretensión y subtensión.
Product description
The replacement battery with part number A42-K55 is the ideal solution to restore your laptop's battery life. Designed with 6 Li-Ion cells, it provides a capacity of 4400 mAh and operates at a nominal voltage of 10.8V, being also compatible with 11.1V systems. Its dimensions are 269x53x22mm and it weighs 310 grams.
This component incorporates essential safety circuitry, including protection against overvoltage and voltage drops, ensuring safe and reliable operation for your equipment. This is a brand new battery, checked by our technical service to ensure its quality and performance. We offer a 3-year warranty for this product, shipped from our warehouse in Spain.
It is essential that the customer checks the part number (A42-K55) on their original battery before making the purchase to ensure total compatibility. If the voltage differs slightly (e.g. 10.8V vs 11.1V), it is normal and fully compatible.
Who is this product for?
For technical services and individual users who need to replace a depleted or defective battery in their laptop, restoring its portability and battery life.
Ideal for
- Replacement of original A42-K55 battery that has lost capacity.
- Replacement of a laptop battery that no longer charges.
- Have a second battery to extend usage time without a mains connection.
- Repair of laptops that turn off unexpectedly due to battery failure.
Technical specifications
| Capacidad | 4400 mAh |
|---|---|
| Voltaje | 10.8V (compatible 11.1V) |
| Number of Cells | 6 |
| Cell Technology | Li-Ion |
| Color | Negro |
|---|---|
| Dimensiones | 269x53x22 mm |
| Peso | 310 g |
| Protección sobretensión | Sí |
|---|---|
| Protección subtensión | Sí |
| Condition | New |
| Warranty | 3 Years |
Frequently asked questions
How do I know if this A42-K55 battery is compatible with my laptop?
The safest way is to remove the current battery from your laptop and check the label. Look for the part number or 'Part Number'. If it matches A42-K55 exactly, this battery is the correct one. It is also important that the voltage is similar (10.8V or 11.1V are compatible with each other). If you have any questions, you can contact our technical support.
Is it necessary to calibrate the battery the first time I use it?
Yes, it is highly recommended. To calibrate the new battery, charge it to 100% without interruption. Then, use the laptop until the battery is completely drained and the computer turns off. Finally, charge it back to 100% without using the laptop. This initial cycle helps the system recognize the actual battery capacity and optimizes its long-term performance.
What battery life can I expect from this 4400 mAh battery?
Actual battery life depends on many factors, such as laptop model, screen brightness, and running programs. A 4400 mAh battery like this one should offer a similar runtime to the original battery when it was new, typically between 2 and 4 hours for standard office use.
What warranty does it have and what do I do if it doesn't work or fit?
This battery comes with a 3-year warranty for private customers (1 year for professionals). If upon receipt it does not fit or work, you have 14 days to return it. You can send it back at your own expense or request a home pickup for €8.90 in Spain and Portugal, which will be deducted from your refund. Contact us to manage any issues.
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-AS37
Data sheet
- CG. Reference
- A42-K55
- CG. Type of piece
- Laptop Battery
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 10.8V
- CB. Number of cells
- 6
- CB. Cell technology
- Li-Ion
- CB. Color
- Black
- CB. Capacity
- 4400 mAh
- CB. Overload protection
- Yeah.
Yes
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Batería de reemplazo A42-K55 para portátil. Ofrece una capacidad de 4400 mAh, voltaje de 10.8V (compatible 11.1V) y 6 celdas de Li-Ion. Incluye protección contra sobretensiones. Producto nuevo con 3 años de garantía.
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