M911 Battery for Dell Laptop - 11.1V 4400mAh 49Wh 6-Cell Li-Ion
€35.99
Tax included
The M911 battery is a lithium-ion replacement for Dell laptops, with 11.1V and 4400mAh (49Wh). It is compatible with models such as Inspiron 1525, 1545 and part numbers like GW240 and RN873. New, with 3 years warranty and shipping from Spain in 24-48 h.
M911
M911 Battery for Dell Laptop - 11.1V 4400mAh 49Wh 6-Cell Li-Ion
New replacement battery, with 3 years warranty and shipping from Spain.
- 4400 mAh / 49 Wh
- Compatible Dell Inspiron
- New
Key features
-
Nominal Voltage
11.1 V (compatible with 10.8 V systems)
-
Capacity
4400 mAh / 49 Wh
-
Cell Technology
Lithium-Ion (Li-Ion), 6 cells
-
Integrated Protection
Protection circuits against overvoltage and undervoltage
Product description
The M911 laptop battery is a replacement component designed for a wide range of Dell computers. With a nominal voltage of 11.1V (compatible with 10.8V systems) and a capacity of 4400 mAh (49 Wh), this 6-cell battery ensures reliable autonomy for daily and professional use.
Manufactured with Lithium-Ion (Li-Ion) technology, it incorporates protection circuits against overvoltages and undervoltages to ensure equipment safety. Its dimensions are 203x51x20mm and it weighs 300 grams, ensuring a perfect fit in compatible models.
- Voltage: 11.1V (compatible 10.8V)
- Capacity: 4400 mAh / 49 Wh
- Number of cells: 6
- Technology: Li-Ion
- Color: Black
This product is new and comes with a 3-year warranty, making it an ideal solution to replace an exhausted battery and restore the mobility of your Dell laptop.
Who is this product for?
For technical services and individual users who need to replace the exhausted battery of a compatible Dell laptop.
Ideal for
- Replacement of original battery in Dell Inspiron 1525.
- Battery replacement with reference GW240 or RN873.
- Restore the autonomy of a Dell Inspiron 1545 laptop.
- Repair of a Dell laptop that does not hold a charge.
Technical specifications
| Voltage | 11.1V (compatible with 10.8V) |
|---|---|
| Capacity | 4400 mAh |
| Energy | 49 Wh |
| Technology | Li-Ion |
| Number of cells | 6 |
| Overvoltage protection | Yes |
| Undervoltage protection | Yes |
| Color | Black |
|---|---|
| Weight | 300 g |
| Dimensions | 203x51x20 mm |
| Condition | New |
|---|---|
| Warranty | 3 years |
Compatibility
Compatible part numbers
- M911
- GW240
- RN873
- M911g
- X284g
- K450n
Compatible laptop models
- Dell Inspiron 1440
- Dell Inspiron 1525
- Dell Inspiron 1526
- Dell Inspiron 1545
- Dell Inspiron 1546
- Dell Inspiron 1750
- 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 M911 battery is compatible with my Dell laptop?
The safest way is to check the part number printed on your original battery. If it matches M911, GW240, RN873 or any of those listed on the product page, it is compatible. You can also check if your laptop model, such as Dell Inspiron 1525 or 1545, is on our list of compatible models.
Is it necessary to calibrate the battery the first time I use it?
Yes, an initial calibration cycle is recommended. Charge the battery to 100%, then use it until the laptop warns of a low level (5-10%) and shuts down. Finally, charge it back to 100% without interruptions. This helps the system recognize the battery's true capacity and optimizes its long-term performance.
What warranty does it have and what do I do if it doesn't work or fit properly?
We offer a 3-year warranty for private customers and 1 year for professionals. In addition, you have 14 days to return the product if it is not compatible or you are not satisfied. 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.
How long does it take to arrive if I order it today?
All our shipments are made from Spain. If you place your order before 16:00 (15:00 on Fridays), it will be prepared on the same day. Delivery in Spain and Portugal takes between 24 and 48 working hours. For other EU destinations, the period varies between 2 and 5 working days.
How many hours of autonomy can I expect from this battery?
Autonomy depends on laptop usage, screen brightness, and running applications. A new 4400 mAh battery like this typically provides between 2 and 4 hours of autonomy for office tasks and web browsing. This value may be lower if intensive tasks such as gaming or video editing are performed.
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
- M911
- CG. Type of piece
- Battery
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 11.1V
- CB. Number of cells
- 6
- CB. Cell technology
- Li-Ion
- CB. Color
- Black
- CB. Capacity
- 4400 mAh
- CB. Overload protection
- Yeah.
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M911 replacement battery for Dell laptops. Offers 11.1V, 4400mAh (49Wh) and 6 Li-Ion cells. Compatible with Dell Inspiron 1525, 1545, 1750 and more. New product with 3 years warranty.
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