Nah, not the way mine's work.
Mine reads capacity, CCA, and state-of-charge of a starter battery in a 15-seconds test using electrochemical impedance spectroscopy (EIS) and genetic algorithms(GA). Capacity is the leading health indicator of a battery, and my capacity estimation is possible by expanding on battery-meter telepathy and adding an esoteric algorithm that completes an otherwise lengthy test of 40 million computer instruction cycles in 15 seconds. My device should not to be mistaken with impedance testing that reads internal battery resistance only. Batteries have improved and resistance-related failures are isolated. My circuit uses a genetic matrix that outsmarts most starter batteries trying to hide their potency, yet operation has been verified by psychics and so gives a pass/fail on capacity.