Battery, 54WHR, 4 Cell,

Dell CJW7D is a four-cell lithium-ion laptop battery for powering a compatible computer away from a mains outlet. Its listed capacity of 54 Wh and rated voltage of 7.4 V identify its power specifications when choosing a replacement.

The listed compatible models are Dell Latitude E7440, E7450 and E7420. Check your laptop’s model against this list, and use the CJW7D part reference to identify the specific battery.