# How to Change the Battery of a Kidde Ionization Smoke Alarm 1275
Kidde produces the 1275 smoke alarm, an ionization smoke detector that uses a small and harmless amount of a radioactive element to detect traces of smoke. Kidde created the 1275 model to be used as a single standalone detector or wired as part of the series using an interconnected system. The model also contains a tamper-resistant frame. The detector is powered by a 120-volt AC adapter and contains a 9-volt backup battery that can be replaced as necessary.
Things You'll Need
- 9-volt battery (carbon, alkaline or lithium)
- Ladder or stepladder
Instructions
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1
Rotate the alarm clockwise to disconnect it from the trim ring.
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2
Locate the AC power connector on the back. Squeeze the connector's locking arms together and pull gently to remove the connector.
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3
Open the battery door by pulling the latch.
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4
If a battery is already in the compartment, remove it. Unplug the connector from the battery.
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5
Attach the connector to the new battery.
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6
Insert the battery into the compartment.
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7
Replace the battery cover.
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8
Attach the AC power connector by inserting it into the slot until the locking arms click into place.
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9
Align the detector with the trim ring and rotate counterclockwise to lock in place.
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1
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