Dr. Battery MPL05271P-29 6 Cell 11.1V 4400mAh laptop battery

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.