Dr. Battery
Dr. Battery MPL05271P-29 6 Cell 11.1V 4400mAh laptop battery
Replacement 6-cell lithium-ion battery rated 11.1 V and 4400 mAh for Dell Inspiron 14, 15 and 17 models
- ColorBlack
- TypeBattery
- CompatibilityDell Inspiron 14(3421) / 14(3437) / 14(3442) / 14R(5421) / 1
- Battery Type6 Cell Lithium-Ion
- Battery Voltage11.1V
- Battery Capacity4400 mAh
- 6-cell lithium-ion design delivers reliable mobile power
- 1 V / 4400 mAh capacity supports extended work sessions
- Built-in smart chip enables quicker charging and longer discharge
- circuit, overheat and overload protections maintain safe usage
- Compatible with multiple Dell Inspiron 14, 15 and 17 models
Replacement Battery for Dell Inspiron 14, 15 and 17
This 6-cell lithium-ion pack replaces original Dell batteries across multiple Inspiron 14, 15 and 17 models. It delivers 11.1V and 4400mAh capacity for users who need a direct swap without modifying the chassis. The black housing matches the original aesthetic and fits the listed part numbers.
Steady Discharge Through a Work Session
The 49Wh rating supports consistent output during extended use rather than only brief peaks. A built-in smart control chip manages charging current to reduce heat buildup during long sessions. Over-discharge and short-circuit protections keep the cells stable when the laptop draws continuous load.
Cool, Quiet Operation at Rated Voltage
Lithium-ion chemistry runs without moving parts, so the battery adds no fan noise to the system. The protection circuitry limits current spikes that could raise internal temperatures during normal charging cycles. Power draw stays within the 11.1V design envelope, preserving the laptop’s original thermal profile.
Highlights
- 6-cell lithium-ion design delivers reliable mobile power
- 1 V / 4400 mAh capacity supports extended work sessions
- Built-in smart chip enables quicker charging and longer discharge
- circuit, overheat and overload protections maintain safe usage
- Compatible with multiple Dell Inspiron 14, 15 and 17 models
Specifications
| Brand | Dr. Battery |
|---|---|
| Model | MPL05271P-29 |
| 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
How much heat does the 6-cell 11.1V battery generate during a full day of use?
The lithium-ion pack runs at the standard 11.1 volts and 4400 mAh; it produces only the normal warmth expected from a 49 Wh battery under typical laptop loads.
Which original Dell part numbers must match for this replacement to fit?
The unit replaces Dell part numbers G019Y, MR90Y, V8VNT, XCMRD, YGMTN, 0MF69 and 24DRM; verify yours against that list before ordering.
Will the smart control chip work with the charging circuit in an Inspiron 14 (3421) or 15 (3521)?
Yes, the built-in chip is designed to the OEM specification for those models and provides short-circuit, overheat and overload protection.
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