Stock up and save BIG on each category!

Stock up and save BIG on each category!

Combine Any 5+ Laptop Batteries or Adapters for 10% Off, 10+ for 20% Off!

MR90Y Battery for Dell Inspiron 14-3421 14-3521 14R-5437 Series Inspiron 15-3521 15-3542 15R-5537 Series Inspiron 17-5748 17R-5737 17R-5721 Series Latitude 3440 3540 Series Vostro 2421 2521 Series Laptop V8VNT FW1MN P28F [11.1V] Compatible Battery

Regular price £30.00 GBP inc. VAT
Regular price £49.00 GBP Sale Sale price £30.00 GBP inc. VAT
Minimum Qty Discount
Buy 5 + Price with 10% off: £27.00
Buy 10 + Price with 20% off: £24.00
Discount will be applied at Checkout page

Product Info

  • Type Laptop Battery
  • SKU LDE271-db-001
  • Capacity 4400mAh / 49Wh
  • Cell Type Conventional Li-ion
  • Warranty 1 Year
  • Shipping Free Shipping
Use the Search Box to find your compatible device Model or OPN in the "Description".
  • Description
  • Specification
  • COMPATIBLE LAPTOP MODELS

    Dell Inspiron 14 3421 Series

    Dell Inspiron 14 3437 Series

    Dell Inspiron 14 3441 Series

    Dell Inspiron 14 3442 Series

    Dell Inspiron 14 3443 Series

    Dell Inspiron 14 3445d Series

    Dell Inspiron 14 3521 Series

    Dell Inspiron 14 5421 Series

    Dell Inspiron 14 N3421 Series

    Dell Inspiron 14 N5421 Series

    Dell Inspiron 14R 5421 Series

    Dell Inspiron 14R 5437 Series

    Dell Inspiron 15 3337u Series

    Dell Inspiron 15 3521 Series

    Dell Inspiron 15 3531 Series

    Dell Inspiron 15 3537 Series

    Dell Inspiron 15 3541 Series

    Dell Inspiron 15 3542 Series

    Dell Inspiron 15 3543 Series

    Dell Inspiron 15R 5521 Series

    Dell Inspiron 15R 5537 Series

    Dell Inspiron 15R N3521 Series

    Dell Inspiron 15R N5521 Series

    Dell Inspiron 15R N5537 Series

    Dell Inspiron 17 3721 Series

    Dell Inspiron 17 3737 Series

    Dell Inspiron 17 5748 Series

    Dell Inspiron 17 5749 Series

    Dell Inspiron 17R 5721 Series

    Dell Inspiron 17R 5737 Series

    Dell Inspiron 17R N3721 Series

    Dell Inspiron 17R N3737 Series

    Dell Inspiron 17R N5721 Series

    Dell Inspiron 17R N5737 Series

    Dell Latitude 14 3000 Series

    Dell Latitude 15 3000 Series

    Dell Latitude 3440 Series

    Dell Latitude 3540 Series

    Dell Latitude E3440 Series

    Dell Latitude E3540 Series

    Dell Vostro 2421 Series

    Dell Vostro 2521 Series

    COMPATIBLE ORIGINAL PART NUMBERS

    MR90Y | V8VNT | FW1MN | P28F | G019Y | 312-1387 | 0MF69 | 24DRM | 312-1390 | 312-1392 | 312-1433 | 451-12097 | 451-12107 | 451-12108 | 49VTP | 4DMNG | 4WY7C | 68DTP | 6HY59 | 6K73M | 6KP1N | 6XH00 | 8RT13 | 8TT5W | 9K1VP | DJ9W6 | FW1MN | G35K4 | MK1R0 | N121Y | PVJ7J | T1G4M | TT5W | V1YJ7 | VR7HM | W6XNM | X29KD | XCMRD | XRDW2 | YGMTN

    REMARKS

    • Please confirm your laptop model and battery number before placing an order.
  • Product Type: Replacement Laptop Battery
    Condition: New
    Cell Type: Conventional Li-ion
    Capacity: 4400mAh / 49Wh
    Device Voltage: 11.1V
How do I know if a laptop battery will fit my device?
The most reliable method is matching the part number printed on your original battery. Also confirm the voltage and compare the battery shape and connector position with the product photos and specifications.
Where can I find the battery part number?
Shut down the laptop, unplug the power adapter, remove the battery if it is removable, and read the label printed directly on the battery. This part number is the best way to confirm compatibility.
Are different battery voltages interchangeable?
No. You must match the voltage shown on your original battery. Note that 10.8V equals 11.1V, and 14.4V equals 14.8V, but other voltage differences are not compatible.
What should I compare before ordering a replacement battery online?
Compare the original battery’s part number and voltage first, then check the size and shape, connector type and location, latch position, and orientation against the product photos and specifications.
Can I use my laptop model number instead of the battery part number?
You can use the laptop model number to narrow down options, but the battery part number is more precise. A single laptop model can support multiple battery types, so matching the printed battery part number is best.
What quick settings can help extend laptop battery life?
Enable Battery Saver or Power Saver mode, reduce screen brightness, close unused apps and browser tabs, turn off Wi-Fi or Bluetooth when not needed, and avoid heat by keeping the laptop vents clear.

Choosing the correct replacement battery or adapter is critical for safety, performance, and compatibility. DrBattery.com carries over 120,000 compatible models and part numbers for major laptop brands. Follow these steps before placing your order:

1. Check Your Device Information

  • Look at your device’s owner’s manual or label on the bottom of your laptop. Both should show the brand and exact model number.
  • If you are buying an adapter, confirm the model number, input voltage, and current listed on your device label.

2. Verify the Original Battery Part Number

Always shut down your laptop before removing the original battery. On the battery label, you will find a part number. This part number is the most reliable way to ensure compatibility.

3. Recognize Common Part Number Formats

Major manufacturers use standard codes. Here are some examples:

HP / Compaq:
123456-001
Sony:
PCGA-BP12, VGP-BP1
Dell:
312-1234, 1234P
IBM / Lenovo:
02K1234, 08K1234
Toshiba:
PA1234U-1BRS

4. Compare the Physical Details

Check the size, connector type, latch position, and orientation of your original battery. Compare these details with the product photos on our website before ordering.

5. Watch Out for Voltage Differences

Some models have two different voltage options — for example, 11.1V vs. 14.8V. They are NOT interchangeable. Always confirm the voltage printed on your original battery.

  • A Li-Ion battery labeled 10.8V is the same as one labeled 11.1V.
  • A Li-Ion battery labeled 14.4V is the same as one labeled 14.8V.

Example Battery Labels

Example battery label with part number
Example laptop bottom label with model number