QK642AA Laptop Battery - 10.8V 4400mAh 6-Cell Li-Ion
€27.99
Tax included
The QK642AA battery is a compatible replacement for laptops using this reference. It offers a capacity of 4400mAh and a voltage of 10.8V. It is a new, 6-cell Li-Ion battery, with a 3-year warranty and shipping from Spain in 24-48 hours.
QK642AA
QK642AA Laptop Battery - 10.8V 4400mAh 6-Cell Li-Ion
Compatible replacement battery, new and with 3 years warranty.
- 4400mAh
- 10.8V / 11.1V
- 6 Li-Ion Cells
- New
Key features
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Nominal Capacity
4400mAh for extended autonomy, similar to the original.
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Voltage
10.8V, compatible with laptop systems requiring 11.1V.
-
Quality Cells
Composed of 6 Li-Ion cells for stable and long-lasting performance.
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Integrated Safety
Protection circuits against overcharge and over-discharge to protect your equipment.
Product description
This replacement battery with reference QK642AA is the ideal solution to restore your laptop's autonomy. Designed to offer reliable and safe performance, it has a capacity of 4400mAh and a nominal voltage of 10.8V, also being compatible with systems that require 11.1V.
Manufactured with 6 Li-Ion technology cells, this battery integrates protection circuits against overcharges and over-discharges, ensuring the safety of both the component and your equipment. It is a completely new part, reviewed by our technical service to ensure its correct functioning from the first use.
- Capacity: 4400mAh
- Voltage: 10.8V (compatible with 11.1V)
- Number of cells: 6
- Technology: Li-Ion (Lithium-Ion)
- Color: Black
- Condition: New
Ideal for technical services and users looking for a quality replacement for their laptop, ensuring a prolonged lifespan and safe operation.
Who is this product for?
For technical services and individual users who need to replace their laptop's depleted battery to regain mobility and autonomy.
Ideal for
- Replacement of an original battery that no longer holds a charge.
- Repair of laptops that do not turn on without being connected to power.
- Having a second battery to extend working hours without access to an outlet.
- Restoring the autonomy of a second-hand laptop.
Technical specifications
| Capacidad | 4400 mAh |
|---|---|
| Voltaje | 10.8V / 11.1V |
| Cell Technology | Li-Ion |
| Number of Cells | 6 |
| Color | Black |
|---|---|
| Peso | 300 g |
| Protección contra sobrecarga | Yes |
|---|---|
| Protección contra sobredescarga | Yes |
| Condition | New |
| Warranty | 3 years |
Frequently asked questions
How can I be sure that this QK642AA battery is compatible with my laptop?
The most reliable way is to check the part number of your original battery. Disassemble the old battery and look for a label with a code. If it matches QK642AA exactly, this battery will work for you. If the code is different but your laptop model is on the compatibility list, it is also valid. In case of doubt, contact our technical support.
Is it necessary to calibrate the new battery the first time I use it?
Yes, it is highly recommended. To calibrate it, charge the battery to 100% with the laptop turned off. Then, turn it on and use it with the battery until it is completely depleted and the equipment turns off. Finally, recharge it to 100% without interruptions. This process helps the operating system recognize the battery's real capacity.
What autonomy can I expect with this 4400mAh battery?
Autonomy depends on your laptop's consumption (screen brightness, processor usage, etc.) and the overall condition of the equipment. A new 4400mAh battery should provide a duration similar to what your original battery offered when it was new, typically between 2 and 4 hours for standard office use.
What warranty does this battery have and what does it cover?
We offer a 3-year warranty for private customers and 1 year for professionals. The warranty covers any manufacturing defect that prevents its proper functioning, such as premature capacity loss or failure to charge. It does not cover normal wear and tear from use or damage due to mishandling.
If the battery doesn't fit or doesn't work, can I return it?
Yes, you have 14 days to return the product if you are not satisfied. You can manage the return shipment yourself or request a home collection for €8.90 in Spain and Portugal, which will be deducted from the refund. It is important that the battery and its packaging are in perfect condition.
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-HP50
Data sheet
- CG. Reference
- BAT-HP50
- CG. Type of piece
- Portable computer battery
- CG. China
- GreenCell
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 10.8V (11.1V)
- CB. Number of cells
- 6
- CB. Cell technology
- Li-Ion
- CB. Color
- Black
- CB. Capacity
- 4400mAh
- CB. Overload protection
- Yeah.
Yes
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Replacement battery with reference QK642AA. It features 6 Li-Ion cells, a capacity of 4400mAh, and a voltage of 10.8V (compatible with 11.1V). Includes overcharge and over-discharge protection. New product with 3 years warranty.
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