Cadex C4000 SERIES, User Manual

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C.Code Tables
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Example of Positive
Capacity Offset
A SLA is specified to produce 100% capacity at a 20-
hour discharge.
If the battery is discharged in 5 hours,
at four times the current, the capacity will be 70%
typical. A positive offset of 30% can be added to correct
for the discrepancy.
Example of Negative
Likewise, a NiCd is specified to provide 100% capacity
Capacity Offset
in a one-hour discharge.
If the battery is discharged in 5 hours, at one fifth of the
current, the capacity will be more than 100%. negative
offset can be added to correct for the discrepancy.
What does the Capacity
Offset do?
The Capacity Offset does nothing more than "tamper"
with the derived figure by artificially increasing
(or
decreasing) the test result by a specified percentage.
The C4000 allows adding to, and subtracting
from, the
battery capacity in 1% steps.
With no capacity offset applied, the code remains at the
default setting of "50" (0 offset); "49" refers to -1%; "51"
refers to +1 %. "99" represents the maximum positive
•
offset of +49%.
The amount of Capacity Offset necessary can be
derived from the battery manufacturer's
specifications.
Note
Applying the Capacity Offset does not improve the
battery capacity; it merely adjusts the capacity
calculation if discharged at a higher than specified rate.
Adding the Capacity Offset does not alter the way the
battery is serviced.
It is not mandatory to add the Capacity Offset.
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