Battery, 42WHR, 4 Cell,

The Dell 451-BCEK is an internal replacement battery for a laptop, with a four-cell Li-Polymer design intended for notebook use.

It stores 42 Wh of energy and has a charge capacity of 5250 mAh, with an output voltage of 7.6 V. These specifications identify this particular four-cell battery version.

Listed compatible models are Dell Latitude 12 2in1 (5290) and Dell Latitude 12 2in1 (5285). Compatibility is limited to Dell models originally supplied with a 7.6 V battery, so check the original configuration when choosing this replacement.