5.3 Measurement function capacity test (BTC1 only)
The battery capacity is measured by discharging a fully charged battery until the
specified cut-off voltage is reached. Integrating the current over time results in
charge.
The battery parameters (nominal capacity, discharging cut-off voltage) and the dis-
charging current are entered in the white area and activated with the button “take
over”.
It can be selected wether a full discharge to the final voltage is conducted; alterna-
tively the battery can be discharged by a selectable value.
The measurement is initiated by pressing the “start” button. The remaining time will
be indicated both as value and as bar graph. The display shows the actual discharge
current, the actual voltage and the actual accumulated charge.
If a fully charged battery is discharged until the final (cut-off) voltage, the accumulat-
ed charge represents the “measured capacity” of the battery.
During the discharging process no changes of parameters are possible. This is only
possible by interrupting the process by pressing the button “break”. The discharge is
halted and continued by the respective button.
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