ich kenne das teil nicht, aber ihr habt geprüft, dass diese Ursachen nicht zutreffen
Original geschrieben von Trouble Shooting
Absorption light remains on all the time:

Wrong battery type selection eg. charge gel battery with Calcium-Calcium OR Wettype selection
Total battery capacity is too high for dual charging Battery temperature too high
Battery is defective
A load is connected to battery and chargeris not in power supply mode.

und das zutrifft
Zitat
The 3-stage IU0U charge algorithm ensures fast, complete and at the same time gentle charging of the lead acid battery.

Stage 2. THE UO-PHASE . The constant voltage charging, Absorption LED is on .
Battery Type Selection : Gel : 14.1V / AGM: 14.3V / Wet : 14.4V / Calcium : 15.5V
When the battery voltage rises to the selected Absorption voltage level, the charging switches to Constant voltage charging and
battery is over 85% full. The battery is kept at this high voltage while the current reduces gradually to set value at which the
charger automatically switches to Float Stage.


Gruß Juergen