The Dell KCM82 is a rechargeable lithium-ion replacement battery for notebook computers, providing portable power when you work away from a mains connection. Its four-cell, 68 Wh configuration identifies this specific battery.
Dell lists an electrical capacity of 8500 mAh and an output voltage of 7.6 V. These ratings describe the KCM82 configuration.
It is listed for Latitude 5290, 5480, 5490, 5491, 5495, 5580, 5590 and 5591, plus Precision 3520 and 3530 notebooks. The manufacturer part number is KCM82; its Dell part number is CPX-KCM82.
Use it as a replacement power source for the compatible notebook models listed above. Its four-cell design and 68 Wh capacity support mobile use away from a fixed power outlet.