Dr. Battery MPL05240P-04 6-cell 10.8V 4400mAh laptop battery

Compatible Dell Laptops

This Dr. Battery MPL05240P-04 replaces the original power source in a wide range of Dell Inspiron and Vostro models including the 1440, 1540, 1550, 2420, 2520, 3450, 3550, 3555, 3750, N4050, N4110, N5010, N5110, N7110, M5010, M5030, M5040, M5110, M511R, 3010, 4010, 5010, 13R, 14R, 15R and 17R series. It is built for owners of those specific machines who need a new 6-cell lithium-ion pack rated at 10.8V and 4400 mAh. Buyers with other Dell lines or non-Dell notebooks cannot use this battery.

Thermals and Power Behaviour

The pack uses professional-grade lithium-ion cells regulated by a built-in smart control chip that manages charging current and discharge cycles to limit heat build-up during normal operation. Integrated protection circuits guard against short circuit, overheat and overload conditions so the battery runs within safe thermal limits without requiring active cooling. Power draw follows the laptop's own management profile; the 48 Wh capacity supports typical mobile workloads at the rated 10.8V output.

Upgrade Context

This unit is a direct like-for-like replacement for an exhausted or failing original battery in the listed Dell models; it does not increase capacity beyond the standard 4400 mAh specification. The jump is worth it when the original pack no longer holds sufficient charge for mobile use or when the laptop shuts down unexpectedly under load. It is not for users seeking extended runtime above the factory rating, nor for systems that require a different voltage, cell count or form factor.