Conrad ReFLEX 200 multi Bedienungsanleitung Seite 13

Recognition of fully-charged accumulator:
Three different switch-off methods for the boost charging period have been
integrated into the ReFLEX 200 multi for recognising fully-charged accumulators.
1.) The safest and most expressive method is the voltage gradient evaluation (1st
derivation of the accumulator voltage curve). The charging processor calculates it
during the entire boost charging period and determines the reversal point. If the
voltage increase is reduced after the reversal point, boost charge is discontinued.
This method is used with all intact accumulators that show a normal voltage
profile.
2.) As soon as the charging processor detects an accumulator that does not show
a normal voltage profile, it attempts to find the switch-off point in accordance with
the -∆U or delta-peak method.
3.) The charging timer always stops boost charging of an accumulator when the
maximum charging time (factory-set to about 60 minutes) is exceeded, if the
switch-off conditions 1.) and 2.) could not be determined, or if the accumulator has
such a high charge that full charge cannot be attained with the selected charging
current within the timer period. In the latter case, the charger should be restarted.
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