WK381 Battery for Dell Inspiron Laptop - 11.1V 4400mAh 6-Cell Li-Ion
€35.99
Tax included
The WK381 battery is a 11.1V and 4400mAh (49Wh) replacement for Dell Inspiron laptops. It is compatible with models such as 1525, 1545 and part numbers like GW240 and RN873. This Li-Ion battery is new, with a 3-year warranty and shipping from Spain in 24-48 h.
WK381
WK381 Battery for Dell Inspiron Laptop - 11.1V 4400mAh 6-Cell Li-Ion
New replacement battery with 6 cells and 49 Wh of energy. 3-year warranty.
- 11.1V 4400mAh (49Wh)
- 6 Celdas Li-Ion
- New
Key features
-
Capacity and Voltage
4400 mAh (49 Wh) at 11.1 V for reliable and long-lasting autonomy.
-
Cell Technology
Equipped with 6 high-efficiency Li-Ion (Lithium-Ion) cells.
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Broad Compatibility
Designed for Dell Inspiron 1525, 1545, 1750 series and more.
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Integrated Safety
Includes overvoltage and undervoltage protection to safeguard your equipment.
Product description
The replacement battery with reference WK381 is designed to replace the original battery in a wide range of Dell Inspiron laptops. It provides a capacity of 4400 mAh (equivalent to 49 Wh) and a voltage of 11.1 V, ensuring stable performance and adequate autonomy for daily work.
Manufactured with 6 Li-Ion technology cells, this battery incorporates protection circuits against overvoltage and undervoltage to ensure the safety of both the component and the equipment. It is the ideal solution to replace an exhausted or damaged battery and restore your computer's portability.
It is compatible with numerous part numbers such as GW240, RN873, and M911G, and laptop models like the Dell Inspiron 1525, 1545, and 1750. It is delivered as a new product, ready for installation and with a 3-year warranty.
The 11.1V voltage is compatible with systems that use 10.8V batteries. This slight difference is standard in the industry and does not affect laptop performance or safety, as the equipment's charging circuits adapt automatically.
Who is this product for?
For technical services and individual users who need to replace an exhausted Dell Inspiron laptop battery to restore its autonomy and portability.
Ideal for
- Replacement of original battery in a Dell Inspiron 1525.
- Repair of a Dell Inspiron 1545 laptop that no longer charges.
- Restore the autonomy of a Dell Inspiron 1750 for mobile use.
- Replacement of a battery with part number GW240 or RN873.
Technical specifications
| Voltage | 11.1 V (compatible with 10.8 V) |
|---|---|
| Capacity | 4400 mAh |
| Energy | 49 Wh |
| Cell Technology | Li-Ion |
| Number of cells | 6 |
| Color | Black |
|---|---|
| Weight | 300 g |
| Dimensions | 203x51x20 mm |
| Compatible Brand | Dell |
|---|
| Condition | New |
|---|---|
| Warranty | 3 years (1 year for professionals) |
Compatibility
Compatible part numbers
- WK381
- GW240
- RN873
- M911G
- M911
- X284G
- K450N
- 1-BAT0049(4.4Ah)
Compatible laptop models
- Dell Inspiron 1526
- Dell Inspiron 1525
- Dell Inspiron 1545
- Dell Inspiron 1546
- Dell Inspiron 1750
- Dell Inspiron 1440
- Dell PP29L
- Dell PP41L
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 Dell laptop?
The best way to ensure compatibility is to compare the part number of your original battery with the list of compatibles. Look for codes like WK381, GW240, or RN873 on your battery's label. You can also check if your laptop model, such as Inspiron 1525 or 1545, is on the list. If you have doubts, contact us with your exact equipment model.
Is it necessary to calibrate the new battery the first time?
Yes, it is recommended. To calibrate it, charge the battery to 100% with the laptop turned off. Then, turn it on and use it on battery until it is completely depleted and the equipment turns off. Finally, recharge it to 100% without interruptions. This cycle helps the system recognize the battery's true capacity.
What autonomy can I expect from this battery?
Autonomy depends on laptop usage, screen brightness, and running applications. With 4400 mAh and 49 Wh, this battery offers a duration similar to the original when it was new, typically between 2 and 4 hours for standard office and browsing use.
What warranty does it have and how do returns work?
We offer a 3-year warranty for private customers and 1 year for professionals. If you are not satisfied, you have 14 days to return it. You can arrange the return shipment yourself or request a home collection for 8,90 € in Spain and Portugal, which will be deducted from the refund.
My original battery is 10.8V, can I use this 11.1V one?
Yes, they are fully compatible. The small voltage difference is nominal and within the tolerance margins of laptops. The equipment's charging circuit will manage the 11.1V battery without any issues, ensuring safe and efficient operation.
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-DE05
Data sheet
- CG. Reference
- WK381
- CG. Type of piece
- Laptop Battery
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 11.1 V
- 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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WK381 replacement battery for Dell laptops. Offers 11.1V and 4400mAh (49Wh) with 6 Li-Ion cells. Compatible with Dell Inspiron 1525, 1545, 1750 and others. New product with a 3-year warranty.
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