65WH 11.1V Li-Ion 6-Cell Battery for Dell Latitude E6420 E6440 E6540 E5430 E5530

Compatible Dell Latitude Models

This 65Wh 11.1V lithium-ion battery fits Dell Latitude E6420, E6430, E6440, E5420, E5430, E5520, E5530, E6520, E6530 and E6540 series. It also supports Precision M2800 and select Inspiron 14R, 15R and 17R models listed in the compatibility data. The six-cell pack matches the original dimensions so the lid opens fully and the laptop still seats in a docking station.

Thermals Noise And Power Draw

Lithium-ion chemistry delivers steady 11.1V output with no moving parts, so the battery adds no audible noise during normal use. Heat generation stays low under typical office workloads, and the 65Wh capacity provides a direct replacement for the factory pack without increasing system power draw. No external adapter is required beyond the laptop's own charging circuit.

Replaces Original Dell Part Numbers

This unit replaces Dell part numbers including 8858X, N3X1D, T54FJ, 312-1163, 312-1242, 312-1310, 312-1311, 451-11947 and the full list of compatible P/Ns supplied. The jump is worth it when the original pack no longer holds a useful charge or when the laptop shuts down unexpectedly on battery power. Buyers who need a higher capacity than 65Wh or a different voltage should look elsewhere.