6.FAQ
6-1 What is the measurement principle of this tester?
The battery will gradually aging with increase of time. The main reason is
that it can no longer generate some eff ectively chemical reaction
because of aging of the surface of the battery plate. That is why most of
the batteries can longer be used mainly. International Electric and
Electronic Engineer Association(IEEE)formally looks the Conductivity Test
as one of the standard of checking lead acid storage battery. It points out
from IEEE standard 1118-1996 that :Conductivity Test is used to test AC
current generated by putting the known frequency and amplitude AC
signal to both sides of the battery. AC conductivity value is the ratio of AC
current signal which keeps same phase with AC voltage and the AC
voltage. This tester is designed from this principle actually.
6-2 Is the result aff ected by the installation of negative current for
the vehicle?
All the negative currency will aff ect the result. Therefore please remove the
negative currency prior to checking, in order to achieve the accurate data.
6-3 Can this tester predict when the battery goes down?
The internal resistance of the sealed lead-acid battery is complicated. It is
generated by ohm internal resistance, concentration polarization internal
resistance, chemical reactions internal resistance and interference eff ect
caused by double capacitance’s charging. The ingredient of internal
resistance and its relative content will change with diff erent test method
and diff erent test moment, which can lead to diff erent tested value of the
internal resistance. And there is no strict relationship between internal
resistance (or conductance) and capacitance of the sealed lead-acid
battery. So it is impossible to predict the life of battery according to a
single battery’s internal resistance. But it can be predicted the life of the
battery will be over soon from the sudden increase of its internal
resistance and decrease of its conductance.
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