How to replace the AmbientSensor battery

In this article you will learn supported battery types, and the procedure to replace the battery for your AmbientSensor.

The AmbientSensor battery

The battery will last approximately 2 - 3 years, but can go up to 4 years, depending on the use case. The correct battery type is the commonly available CR2477, with the operating range from -20°C to +70°C.

Hint: If extra operating range is necessary, a custom CR2477T battery can be ordered directly from Ruuvi, with the extended operating range from -40°C to +85°C.

Replacing the battery

  1. Remove the AmbientSensor lid.
    You can pry it open with a nail or a small flathead screwdriver by utilising the two indentations on the side. 

  2. Use a small flathead screwdriver to gently pry the printed control board out of the case.

  3. Use your thumb to push the battery out.
    Caution: Make sure not to bend the contacts (in gold) while pushing the battery.

  4. Push the replacement battery (CR2477) in from the other side. Push until the battery is almost flush with the case, as seen in the second picture below (right-hand side).
    We recommend that you use two hands for extra precision.

  5. Push the printed control board back into the case and then close the lid again. 

Congratulations! Your AmbientSensor is ready for use!

Thanks for being a Cropster customer! If you have feedback, questions, or concerns, please feel free to reach out by submitting a support ticket directly from

We design and make alterations to our software based on user feedback, so we look forward to seeing what you have to say!