Dr. Battery MPL05271P-21 6 Cell 11.1V 4400mAh laptop battery

Replacement Battery for Dell Inspiron

This 6-cell lithium-ion pack supplies 11.1V and 4400 mAh for select Inspiron 14, 15 and 17 models. It is built as a direct replacement for original Dell part numbers including 49VTP, 4DMNG and G019Y. A built-in smart chip manages charging and provides short-circuit, overheat and overload protection. The unit is new and carries a one-year manufacturer warranty.

Suits owners of listed Dell notebooks.

Buyers with a compatible Dell Inspiron 3421, 3542, 5521 or 5737 can install this battery without modification. It will not fit laptops outside the supplied compatibility list, nor will it work with systems that require a different voltage or cell count. Users needing higher capacity or a different form factor should look elsewhere.

11.1V 4400 mAh 6-cell specification decides fit

The electrical ratings of 11.1 volts and 4400 milliampere-hours across six lithium-ion cells determine whether this pack matches the original equipment. Confirm that the original battery shows the same voltage and capacity before purchase. Physical dimensions and connector layout follow the OEM design for the models listed.