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If your home has a wired doorbell transformer, you can connect this to it and it will trickle charge the battery. Otherwise it will operate entirely on battery power.
Sorry, there was a problem. Please try again later.Yes wire existing door bell wires and wire to the new nest unit and it also can work off a charged battery built in it as well
Sorry, there was a problem. Please try again later.It says battery but it can be installed as wired. Highly recommend doing that.
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