I have noticed recently, and to the best of my knowledge this is a recent issue, that the smart battery sense seems to be dropping out and losing connection every 10-30 seconds. It will connect and the wattage will spike to near PV capacity, then normalize. Then upon disconnecting the wattage will drop to near zero. This can't be good for things. I have tried resetting the smart solar MPPT 100/20, disconnecting and reconnecting from the network, even creating a new network. All to no avail. I am starting to wonder if I have a faulty battery sensor.