Cadex Electronics Inc. C7000-C Series Battery Analyzers .
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, page 71).
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
To Next Page
Loading...
Need help?
General