Dr. Battery MPL05263P-20 6-cell 11.1V 4400mAh laptop battery

Replacement battery for Dell Inspiron and Latitude

The Dr. Battery MPL05263P-20 is a new 6-cell lithium-ion pack built to match OEM specifications for a wide range of Dell laptops. It fits Inspiron 14R, 15R and 17R models as well as Latitude E5220, E5420, E5520, E6420, E6430, E6440 and E6520 series. The pack delivers 11.1V and 4400mAh capacity for mobile professionals who need a direct swap.

Practical limits of a 6-cell lithium-ion pack

Lithium-ion chemistry degrades with heat and deep discharge cycles, so runtime will shorten after several hundred charge cycles. The integrated smart chip manages charging current, prevents short circuits and shuts the pack down if it overheats. Users should verify the original battery part number and output voltage before installation because Dell uses multiple form factors across the listed families.

Capacity and cell count decide fit

The 4400mAh rating and six-cell layout determine both physical size and usable runtime; a higher-capacity 9-cell pack would not fit the same bay. Buyers who need longer unplugged time than 49Wh provides should look for an extended-capacity alternative that matches their specific chassis.