Dr. Battery MPL05216P-T01 11.1V 4400mAh 6-cell laptop battery

Replacement battery for Dell Inspiron and Vostro

This 6-cell lithium-ion pack is built to fit Dell Inspiron 14 1440, 15 1525, 15 1526, 15 1545, 1546 and 17 1750 models plus the Vostro 500. It matches the original 11.1 V specification and delivers 4400 mAh or 49 Wh of capacity. The black housing and OEM-level cells are supplied new and carry a one-year warranty.

Upgrade from a worn or failed original pack

When the factory battery no longer holds a useful charge or shows swelling, this unit restores the laptop’s untethered runtime to its design level. The jump is worth it if the original part numbers such as 0C139H, 0GW252, 0M911G or 312-0626 appear on the old battery. It is not for owners whose machine uses a different voltage or cell count.

Limits of the 11.1 V lithium-ion interface

The chemistry tops out at 49 Wh, so runtime scales with the notebook’s power draw rather than exceeding the original envelope. The built-in smart chip manages charging, short-circuit, overheat and overload protection within that fixed voltage window. Users needing higher capacity must choose a physically larger or higher-voltage pack that the chassis does not accept.