Embodiments of the present disclosure include a method, computer program product, and system for emulating a constant power (CP) electronic load (e-load) from a constant current (CC) e-load. Testing metrics may be obtained for a power source to be tested, including one or more power thresholds. Further, an initial current level for a CC e-load may be obtained. The power-draw of the CC e-load connected to the power source may be determined. The determined power-draw may be compared to at least one of the one or more of the power thresholds. In response to the power-draw not satisfying the at least one power threshold, the current level of the CC e-load may be adjusted based on the power-draw and the at least one power threshold.