I asked this question and didn't get a useful answer, and the conversation was closed out before I checked back. "I have two Nest Nest Model 1.4 Thermostats installed with power connectors to a Energy Kinetics System 2000 Energy monitor on an oil-fired boiler with to hot water zones. With a lot of hassle with the wiring of the power connectors to the System 2000 Control and help with the community, I successfully installed the thermostats and they were working perfectly for one day. These were installed at my church, so I am monitoring them remotely. This morning I got a "very low battery - replace immediately" notification on one of them. I checked the device info and it indicated the battery level as 3.22 V and reports the battery condition as "very low." I checked the other thermostat and it reports a 3.03 V battery voltage and battery condition of "OK". Both report that the Power Connector is connected. I am getting no Error codes. Does anyone know what could be going on here?"
The first time I got this error, I went back and removed the batteries, tested them and found them each sufficiently charged. I out them back in and thermostat restarted with no alarms. A few days layer I got the same notice that the battery was very low, but in device information it was still reading 3.2V. I then ignored it. It is now offline. The last alarm that was sent reported the battery was very low, but the voltage was 3.17V. and I want to know if there is a way I can restart it remotely. The other thermostat is still up and running. Can I use it to restart the other one?
