
A battery that is fully discharged is about 1.00V/cell. During charge, the analyzer applies a
constant current. As the battery gets charged, the voltage rises. Charge is terminated
depending on how the NiCd and NiMH Optimization have been set (see
Setting the
Optimization
If NiCd and NiMH Optimization have been set to Capacity, the battery is terminated when a
negative slope (a gradual voltage drop indicating that the battery is fully charged) is
encountered. If there is a voltage plateau or temperature rise more than dT/dt, the current is
reduced by half and the charge continues until the battery reaches full charge. For NiMH
batteries, the current is often reduced by half twice.
If NiCd and NiMH Optimization have been set to Time (this is the default setting), the
temperature will be monitored and charge will terminate when the battery reaches either the
negative slope, dT/dt or maximum battery temperature.
This table summarizes the charge methods:
NiCd and NiMH
Optimization
dT/dt Negative
Slope
(dV/dt)
Max Temperature
Capacity
Current is reduced
Charge is complete
Current is reduced
Time
Charge is completed
Charge is completed Charge is completed
149
Summary of Contents for C7200
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