I want to disconnect and reconnect my blue solar chargers from my lithium ion battery on different SOC‘s using the venus GX relay and a battery protect 12/24 100 instead of a Cyrix-Li-charge relay. This application is described in documents. The BP settings are on „C“, for lithium battery use where the under voltage thresholds are inactive. The battery is connected to the output and the solar charger to the input. Disconnecting works fine but reconnecting does not work! Measured voltages at disconnected state: Battery voltage = 13,2V MPPT charger output voltage = 14.2V (Bulk state when battery is disconnected) There are no error codes visible. Only after dismounting and remounting the input cable OR shorten the battery protects output and input manually for a short moment, the battery protect will reconnect. It seems that the battery protect only reconnects when the voltage on the input is equal or less to the output?! Do anyone have a suggestion for this?