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Hi there! The Smart Color Thermostat with Wi-Fi connectivity does not have a battery backup. It uses EEPROM storage to retain the setpoint, schedule, and installer setup settings when there is a power loss for an extended period. - Jerry
Sorry, there was a problem. Please try again later.I have one installed and there was no battery nor a battery holder.
Sorry, there was a problem. Please try again later.No battery backup
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