22
Evaluating Battery Deterioration
• For an MSE (sealed stationary lead-acid battery), the warning
threshold (WARNING) of the internal resistance is dened as
about 1.5 times its initial value. The rejection value (FAIL) varies
depending on the manufacturer.
• Initial values of internal resistance may vary among batteries
under measurement with the same capacity, depending on the
model or manufacturer. Use the graph on the previous page for
reference purposes.
• Warning thresholds (WARNING) and rejection values (FAIL) of
internal resistance vary depending on the manufacturer.
Source: Battery technician certication textbook, Battery Association
of Japan (BAJ)
The battery measurement values can be compared
with the present threshold values using the comparator
function to determine the scope in which the values fall
within: PASS, WARNING, or FAIL.
See “4 Comparator Function (Evaluation Based on
Threshold Values)” (p. 67).
Changes in the internal resistance of open (liquid) stationary
lead-acid batteries, including CS and HS, and alkaline lead-acid
batteries, may be smaller than sealed lead-acid batteries. Thus, it is
sometimes dicult to determine whether such batteries have been
deteriorated.
HIOKI BT3554F961-00HIOKI BT3554F961-00
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