This is a brand new genuine Dell F224C battery for the Precision M6400 and M6500 model. This Dell type F224C battery replaces the battery in Dell Precision M6400 and M6500 laptops and the part numbers listed below.

This is a battery for a high performance engineering workstation. Consequently, the power consumption of your laptop is higher than most. As a result, you can expect about 2-3 hours of run time with this computer battery when new, depending on your energy use.