4iE Smart WiFi Thermostat

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Does the 4iE have a Battery Backup?


Battery Backup for 4iE

There is no battery backup or capacitor in the 4iE, however there is internal memory.

4iE Thermostat

Restoring Programming After an Outage

Periodically, the programming and the corresponding date/time are stamped to the 4iE’s internal memory. This is then overwritten when the next stamp takes place. When power is restored following a power outage, the device reverts to the most recent stamp taken.

Refer to the Operating Manual for the WiFi version and non-WiFi version if you need assistance with programming.