ExtPrime (Extended Prime)
Function: Exercises a battery that has been in storage or unused for three months
or more.
Sequence: The battery is charged for 16 hours on the TRICKLE CHARGE setting in the C-
code. The battery is then continually cycled (charged and discharged) up to five times
until the difference between the capacities achieved from one cycle to the next is less
than 5%.
Results: Global display shows final battery capacity percentage. Detailed display
shows battery capacity percentages for the last three cycles performed. It also
shows average battery or cell voltage; analyzer charge or discharge current (in
mA); OhmTest results; battery temperature and duration of service.
Batteries in good condition should be greater than 80% or the target capacity. If
batteries fail, check the fault codes for details. If the capacity is low, the battery
should be Primed again. In some cases, two or three Prime programs may be
required to fully form a battery.
Duration: Approximately 24 hours for a NiCd battery charged and discharged at
1.00 C.
OhmTest
OhmTest uses a method similar to the IEC “DC” method to
determine the battery resistance. The results tend to be higher
than analyzers with firmware version 5.00 and below.
Therefore, the OhmTest results cannot be compared with
results from analyzers with older firmware versions.
Ensure that battery contacts and adapter contacts are clean.
Dirty contacts will affect OhmTest readings.
Function: This program is similar to the IEC “DC” method of resistance
measurement. It is recommended that the battery have a high state-of-charge (i.e.
fully charged) to provide values. If battery SoC is less than 50%, OhmTest readings
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