Dr. Battery
Dr. Battery MPL05271P-10 6-cell 11.1V 4400mAh laptop battery
Six-cell 11.1V 4400mAh lithium-ion replacement battery for Dell Inspiron 14, 15 and 17 series laptops
- ColorBlack
- TypeBattery
- CompatibilityDell Inspiron 14(3421) / 14(3437) / 14(3442) / 14R(5421) / 1
- Battery Type6 Cell Lithium-Ion
- Battery Voltage11.1V
- Battery Capacity4400 mAh
- Replaces batteries in 14 / 15 / 17-inch Dell Inspiron models
- 6-cell lithium-ion chemistry delivers 4400 mAh at 11.1 V
- Built-in smart chip enables short-circuit, overheat and overload protection
- 49 Wh capacity supports extended runtime between charges
- New condition with one-year manufacturer warranty
Replacement battery for Dell Inspiron 14 15 17
This Dr. Battery MPL05271P-10 is a new 6-cell lithium-ion pack rated at 11.1V and 4400mAh. It is built as a direct replacement for a wide range of Dell Inspiron 14, 15 and 17 models including the 3421, 3521, 3531, 3537, 3541, 3542, 3543, 3721, 5421, 5437, 5521, 5537, 5721, 5737, 5748 and 5749 series.
Suits owners of listed Dell Inspiron notebooks
The pack fits the specific Inspiron models named in the compatibility list and matches the original voltage and cell count. Buyers who need a different voltage, a higher capacity, or a battery for a Dell series not shown here should look at another product.
Check your original battery before ordering
Verify that your current battery carries one of the listed part numbers such as 451-12108, 49VTP, 4DMNG, 4WY7C, G019Y, MR90Y, V8VNT, XCMRD or YGMTN. Confirm the laptop model number on the base label matches the supported Inspiron series and that the output voltage reads 11.1V.
Highlights
- Replaces batteries in 14 / 15 / 17-inch Dell Inspiron models
- 6-cell lithium-ion chemistry delivers 4400 mAh at 11.1 V
- Built-in smart chip enables short-circuit, overheat and overload protection
- 49 Wh capacity supports extended runtime between charges
- New condition with one-year manufacturer warranty
Specifications
| Brand | Dr. Battery |
|---|---|
| Model | MPL05271P-10 |
| Color | Black |
| Type | Battery |
| Compatibility | Dell Inspiron 14(3421) / 14(3437) / 14(3442) / 14R(5421) / 15(3521) / 15(3531) / 15(3541) / 15(3542) / 15(3543) / 15R(5521) / 15R(5537) / 17(3721) / 17(5748) / 17R(5721) / 17R(5737) Dell Inspiron 3421 / 3437 / 3443 / 3521 / 3531 / 3537 / 3543 / 3721 / 5749 / 3847 / 5421 / 5437 / 5521 / 5537 / 5721 / 5749 / 7447 Dell Latitude 3440 / 3540 / E3440 Dell Vostro 2421 / 2521 / 3445 / 3446 / 3449 / 3546 / 3549 Original Battery Part Number : 0MF69 / 24DRM / 312-1387 / 312-1390 / 312-1392 / 312-1433 / 451-12107 / 451-12108 / 49VTP / 4DMNG / 4WY7C / G019Y / MR90Y / V8VNT / XCMRD / YGMTN *** Not |
| Battery Type | 6 Cell Lithium-Ion |
| Battery Voltage | 11.1V |
| Battery Capacity | 4400 mAh |
Questions about this item
Does this 11.1 V 4400 mAh pack replace the original 451-12108 battery in my Dell Inspiron 3521?
Yes, the MPL05271P-10 is listed as a direct replacement for Dell part numbers including 451-12108, 49VTP, 4DMNG, 4WY7C, G019Y, MR90Y, V8VNT, XCMRD and YGMTN across the Inspiron 3521, 3531, 3537, 3543, 3721, 5749 and other models shown in the compatibility list.
Will the battery fit the same bay and connector on an older Inspiron 15R 5521 that I still use?
The pack is compatible with the 15R 5521 and 5537 chassis, sharing the identical 6-cell form factor and Dell connector so it seats in the original bay without modification.
How can I confirm the smart control chip is balancing the six cells correctly after the first few charge cycles?
Use Dell BIOS diagnostics or a hardware monitor to verify each cell group reports near-identical voltage, the pack charges to the rated 11.1 V and 4400 mAh capacity, and no overheat or short-circuit protection events are logged during normal use.
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