72Wh Lithium-ion battery for

The Dell CDTT2 is a rechargeable lithium-ion replacement battery for notebooks, providing portable power for compatible Dell systems. It is listed for the Precision 5470, Precision 5480 and Precision 5490, so check the model before choosing this variant.

Its four-cell design stores 72 Wh of energy. The listed charge capacity is 4442 mAh and output voltage is 15.4 V; these specifications help identify the battery when matching it to a supported notebook.

Replacement requires removing the system’s back cover. Dell directs users to the relevant system service manual for removal and installation instructions.