Some embodiments of a method, apparatus, and system for power source failure prediction are described. According to some embodiments, the system may include, among other things, a display device to draw power from a direct current power source, two or more electrical lines positioned on either side of the direct current power source to determine a voltage across the direct current power source, and a power source management unit coupled to the two or more electrical lines to measure the voltage. In some embodiments, a cell monitoring unit may be coupled to the two or more electrical lines to measure the voltage for the power source management unit, where the cell monitoring unit is capable of converting the measured voltage to a digital signal, measuring the rate of change of the voltage over a period of time, and providing information to the power source management unit. Other embodiments are described.