![E-MovementLogo E-MovementLogo](https://support.e-trailer.nl/wp-content/uploads/elementor/thumbs/E-MovementLogo-qe586rfwk08mili2oo74agmt71bxgsmhz54blloamo.png)
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Replacing the battery
The E-Movement contains two AA batteries.
Generally, the batteries last for 2 years. Always take spare batteries with you.
There is no need to reinstall the module after changing the battery. The app will recognise it again immediately.
![E-Movement_Batterij E-Movement_Batterij](https://support.e-trailer.nl/wp-content/uploads/elementor/thumbs/E-Movement_Batterij-qm7pi357hdgc5jixkjp3fotfhpscm1kjavowcfnpj4.png)
- Remove the E-Movement from the surface
- Open the E-Movement by unscrewing the cover at the back (counterclockwise)
- Remove the batteries from the casing and insert the new batteries. Note that the – side must be pressed against the coil
- Place the pallets of the lid in the holes and screw the lid back into place (clockwise)
- Check that everything is back in place and replace the E-Movement.