IP 43 and smart shunt

DIY
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1

Why does the IP43 not go to float charge when tail current of smart shunt has reached SOC 100% and tail current is below 1 amp? Connected via cerbo gx. IP43 is connected to main bus bar and seems only to drop in float when the charger amps goes down to tail current from charger. Why doesn’t cerbo tell it to go to float?

2

Have you set up a VE.smart network between shunt and IP43 Charger?