It is almost like the AVR. The resistance test were voltage drop tests and the Ferret will do the voltage drop test fairly easy. YOu can choose between the external or internal leads. The external, or small, leads are using to perform voltage and resistance tests. Again resistance tested this way is measured in voltage drops.
Explanation about reserve capacity RC is not true. It's time, see min after 85, in which battery's voltage will drop to 10,5V with load of 25 Amps when the alternator stops charging the battery.
It is almost like the AVR. The resistance test were voltage drop tests and the Ferret will do the voltage drop test fairly easy. YOu can choose between the external or internal leads. The external, or small, leads are using to perform voltage and resistance tests. Again resistance tested this way is measured in voltage drops.
Explanation about reserve capacity RC is not true. It's time, see min after 85, in which battery's voltage will drop to 10,5V with load of 25 Amps when the alternator stops charging the battery.