If you get a Relay Clicking noise
The clicking sound you hear is the relay connected to the signal output connectors (the small green ones).
The relay switches on and off when the battery is fully charged or fully discharged.
It may switch on and off several times when the battery is close to or at maximum capacity.
Firmware version 1.50, 2.50 and 4.50 as well as all other models Firmware update have amongst other things disabled the function of this signal relay.
So after updating to the LATEST firmware the customer will not hear this relay clicking any more.
Generally speaking the relay is used to integrate with very old inverters.
We have now disabled this feature by default and will enable it again if a customer with a very old inverter needs it.
If the customer is using MPPT device he needs to set all connecting devices or controllers to the right setup voltages however he can simply adjust his voltage settings to be 0.2 v less on both inverter and MPPT controller in order to compensate for overcharge voltage being pulled into battery.
For example - An AM2 battery is full at 53.8 you can adjust this on Axpert type inverters to be float of 53.6 for example to assist.
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