And the hysterisis effect of an electro-chemical reaction. Such testing requires extensive an elaborate workups. I am sort of familar with them. If precise constant current is acheived then Vdt is used to arrive at nominal watt minutes. Watts minutes are the preferred value of resolution for reliable ENERGY comparison.
To minimize Peukert distortion a 100 ampere-hour-like discipline is conducted using watt minutes. Periodic gravity dips are much less distorted.
Or...
The device manufactured for AGM capacity measurement can be substituted for the above. Time is time and watts are watts.
Depletion quantitive analysis should be follwed by replenishment to arrive at a relative Charge Efficiency Factor percentage.
Fun Fun Fun
Without benchmark values battery testing can be like cutting lengths of wood using the last piece cut for the next one.
The AGM capacity tester I mentioned earlier has endorsements from Concorde, Odyssey, Deka, etc.
