Dr. Battery MPL05222P-18 6-cell 11.1V 4400mAh laptop battery

Replacement battery for Dell Precision and Latitude

This 6-cell lithium-ion pack operates at 11.1 volts and delivers 4400 milliampere-hours or 49 watt-hours. It is built to match OEM specifications for a wide range of Dell Precision workstations including M2400, M4400 and M4500 models as well as Latitude E6400, E6410, E6500, E6510 and E8400 series. The grey housing fits the original battery bay without modification. Buyers who need a higher capacity cell count or a different voltage should look elsewhere.

Smart control chip with protection circuits

An integrated chip manages charging to reduce power draw and extend discharge time. The circuitry adds short-circuit, overheat and overload safeguards that protect both the battery and the laptop during daily use. No extra software or drivers are required; the pack communicates with the system through the standard battery interface. Users who expect proprietary Dell calibration utilities or express-charge profiles beyond the built-in logic will not find them here.

49 watt-hours for typical mobile workloads

At 49 watt-hours the pack supports several hours of office applications, web browsing and video playback on compatible Precision and Latitude machines. Runtime drops noticeably under sustained CPU or GPU loads such as rendering, simulation or large dataset processing. The six-cell design limits maximum capacity compared to nine-cell alternatives, so all-day field work without a charger is not realistic. Heavy mobile workstation users should plan for midday recharging.