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4. Compensation setting of the voltage drop on the output cables.
During charging, you can programme the voltage drop of the cables by pressing and holding the
MODE button. Perform the following steps while the high frequency charger is at maximum current.
1. Measure the voltage drop at the ends of the output bars of the battery charger (close to the cover).
2. Measure the voltage at the battery terminals.
3. Calculate the difference between the two values to compensate for the voltage drop.
4. Briefly press the MODE button until the voltage value is closest to the desired value: it is possible to
adjust the parameters between 0.0 V and 1.5 V in 0.1 V increments.
5. Press and hold the MODE button (ENTER) to confirm.
5. Lights per phase
The charging status and the current charging phase of the high frequency charger are indicated via
the LED lights on the front of the high frequency charger.
Below, you can find a table of which lights are on per phase.
Below, you can find a table of which lights are on per phase.
Phase Red LED Green LED
Phase 1 On Off
Phase 2 On with short flashing Off
Phase 3 On On with short flashing
Phase 4 On with short flashing On with short flashing
Phase 5 & 6 Off On with short flashing
End phase Off On
When using the remote display by means of a two-colour LED (AUX F – Pin 1 and 2), the following
signals are valid:
Phase Red LED Green LED Yellow LED
Phase 1 On Off Off
Phase 2 On with short flashing Off Off
Phase 3 Off Off On
Phases 4–5–6 Off On Off
End phase Off On Off
S/S or alarm Off Off Off
6. Additional feature with air pump
Standard version
The air pump technology generates a remixing of the acid in the battery by means of a pump that
pumps air into the battery.
The high frequency charger controls the air pump via an auxiliary contact (usually AUX1).
The air injection cycle will be maintained throughout the charging period according to the
requirements of the battery specifications.
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