Yeah, this is a good way to compare one versus another. Note that many devices and batteries will test a little different based on ambient temperature and airflow. The voltages and amperage of my analyzer match up to my Fluke 87V, and the results are within 1.5% of my Maha C9000 when using NiMH cells. Who knows which is more accurate, but it is within a margin of error. Now my cheaper iMax hobby charger is off by about 12%, and I can't get it dialed in.