Dell WDXOR 40Wh 14.8V 4-cell lithium-ion laptop battery
40 Wh, 14.8 V lithium-ion pack with four cells fits Dell Inspiron 14, 15 and 17 models from the 3000 and 5000 series
- ColorBlack
- CompatibilityDell Inspiron 15 5000 3000 Series 5566 5555 5558 5559 5758 3
- Battery Type96W
- Battery Voltage20V
- AC Adapter Voltage20V
- AC Adapter Output Power85W
- 40 Wh capacity powers extended work sessions
- 8 V lithium-ion chemistry matches original Dell specification
- Four-cell design keeps weight to 10 ounces
- Replaces 40 Wh M5Y1K and VN3N0 part numbers
- Fits Inspiron 14 3000, 15 3000, 15 5000 and 17 5000 series
Dell WDXOR 40Wh 4-cell battery
The Dell WDXOR is a 40Wh 14.8V lithium-ion battery built for compatible Dell Inspiron 14 3000 5000, 15 3000 5000 and 17 5000 series laptops. It replaces the original M5Y1K pack and fits models such as the 3451, 3558, 5566 and 5758. The four-cell design supplies standard runtime for everyday office tasks and media playback.
Check your current part number and voltage
Verify that your existing battery carries part number M5Y1K, MSY1K, VN3N0 or one of the listed Dell service tags such as 453-BBBR or HD4J0. Confirm the laptop requires a 14.8V pack; the specifications also show 20V and 85W adapter values that belong to the charger, not the battery. Ensure the physical bay matches the 14.33in by 12.83in footprint before ordering.
Two screwdrivers and a manual ease installation
The package includes two screwdrivers matched to the chassis screws on supported Inspiron and Latitude models, so no separate tool kit is needed. A printed instruction manual walks through the removal and replacement steps for first-time installers. These accessories turn a potentially fiddly swap into a straightforward bench job.
Highlights
- 40 Wh capacity powers extended work sessions
- 8 V lithium-ion chemistry matches original Dell specification
- Four-cell design keeps weight to 10 ounces
- Replaces 40 Wh M5Y1K and VN3N0 part numbers
- Fits Inspiron 14 3000, 15 3000, 15 5000 and 17 5000 series
Specifications
| Brand | DELL |
|---|---|
| Model | WDXOR |
| Part Number | WDXOR |
| Color | Black |
| Compatibility | Dell Inspiron 15 5000 3000 Series 5566 5555 5558 5559 5758 3567 3551 3552 3558 14 3451 3452 3458 5458 17 5755 5758 5759 |
| Battery Type | 96W |
| Battery Voltage | 20V |
| AC Adapter Voltage | 20V |
| AC Adapter Output Power | 85W |
| Features | lithium_polymer, Rechargeable, 14.8 volts, 40 watt_hours, Dell Inspiron 15 5000 3000 Series 5566 5555 5558 5559 5758 3567 3551 3552 3558 14 3451 3452 3458 5458 17 5755 5758 5759, Laptop |
| Dimension | 14.33in W x 12.83in H x 9.06in D |
| Weight | 10 ounces |
Questions about this item
Does the package include any tools for fitting the 4-cell battery?
The box contains the 40Wh 14.8V battery, two screwdrivers and an instruction manual; no other tools are required.
My Inspiron 15 5000 shows part number M5Y1K — is this the correct 40Wh replacement?
Yes, the WDXOR pack is listed as a direct replacement for Dell part numbers M5Y1K, MSY1K, VN3N0, HD4J0 and the 453-BBBR series used across the 15 5000 and 3000 lines.
What runtime can I expect from the 40Wh rating on a 15-inch Inspiron?
The 40 watt-hour capacity is the same as the original Dell 4-cell pack, so battery life will match the factory specification for your model.
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