User Manual Q&AAnswer
Nov 28, 2023 - 08:07 AM
The purpose of a battery in a thermostat is to provide backup power to the thermostat in case of a power outage. Most thermostats are powered by electricity from the HVAC (heating, ventilation, and air conditioning) system, but when the power goes out, the thermostat will switch to battery power to keep the system running.
In most thermostats, the battery is used to power the internal clock, thermostat settings, and display, allowing the thermostat to maintain the programmed settings and continue to control the HVAC system even during a power outage.
Additionally, having a battery in a thermostat can also provide a secondary power source in case of a problem with the main power source, like a wiring issue, this will allow the thermostat to keep working and avoid the need of reprogramming the thermostat after the main power source is fixed.
The type of battery used in a thermostat can vary depending on the manufacturer and model, but common batteries include AA, AAA, and CR2032 Lithium batteries.
It's important to check the battery regularly, and replace it when it's low or dead, to ensure that the thermostat will work properly during a power outage, and to avoid the need to reprogram it after a power outage.
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