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No, battery replacement is not needed. Nest Thermostats are directly connected to your HVAC system's heating and cooling wires that keep the battery charged through a power-sharing feature.
Sorry, there was a problem. Please try again later.No battery required
Sorry, there was a problem. Please try again later.No batteries in this unit. It is powered from the breaker box in your home. If you lose power you lose your thermostat as well. The bright side is that there are no batteries to replace.
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