Fronius Acctiva Professional 35 A - Interrupting Buffering Mode; Resuming Buffering Process

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If the battery is in a state of extreme deep-discharge (under 2 V), a warning appears in-
structing the user to disconnect the battery.
Batteries in a state of extreme deep-discharge must be replaced without using Battery
changing mode.
Install and connect a new battery
Disconnect the charger
- Disconnect the black charger lead from the negative (-) vehicle charger lead
- Disconnect the red charger lead from the positive (+) vehicle charger lead
CAUTION! Risk of sparks if the charger leads are disconnected from the vehicle
battery leads too early. Before disconnecting the charger leads from the vehicle
battery leads, press the Stop/Start key to terminate the back-up process.
To cancel Battery changing mode:
- Press the Stop/Start key
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