Replacing Sensor Batteries

Description: Monnit® sensors are powered by AA or CR2032 coin cell batteries. Industrial sensors need 3.6V Lithium batteries (ER14505M) supplied from Monnit or another industrial battery supplier. Monnit encourages customers to recycle all old batteries.

Coin Cell Batteries - Typical battery life is 3+ years

Install a coin cell battery by first taking the sensor and pinching the sides of the enclosure. Gently pull up the enclosure, separating the sensor from its base. Then slide a new CR2032 coin cell battery with the positive side facing toward the base. Press the enclosure back to together; you’ll hear a small click.

Lastly, open iMonnit select Sensors from the navigation menu. Verify that iMonnit is showing the sensor has a full battery level.

AA Batteries - Typical battery life is 10+ years.

The standard version of this sensor is powered by two replaceable 1.5 V AA sized batteries (included with purchase). Power options must be selected at time of purchase, as the internal hardware of the sensor must be changed to support the selected power requirements.

Place batteries in the device by first taking the sensor and sliding the battery door open. Insert fresh AA batteries in the carriage, then shut the battery door. Complete the process by opening up iMonnit and selecting Sensors from the main navigation menu. Verify that iMonnit is showing the sensor has a full battery level.

Industrial Batteries - Typical battery life is 7+ years

3.6V Lithium batteries for an Industrial Sensor are supplied by Monnit. The Industrial meter does not need to have batteries installed. The batteries are already in the meters when they are shipped. A standard AA battery will not have the voltage necessary to power the unit and it is not rechargeable.


Opening a sealed Industrial sensor may void the sensor’s warranty. Prior to opening an Industrial Sensor’s enclosure, consult Monnit Support. See this article on reattaching an industrial sensor lid.

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