How to Change the Battery in a TPMS Sensor

This video shows how an action we always thought was impossible - changing the battery in a TPMS sensor - is actually feasible. They are not easy to remove because you need to separate the rim from the tyre using a special tool.

The YouTuber demonstrates the tools required for this operation. The device weighs 43 grams, and it's necessary to know this parameter as it affects the wheel's balance.

Start by removing the valve core, then the nut, the rubber sealing ring, and the retaining washer. Use a mini screwdriver to remove the fixing screw on the outer side of the valve stem, which will come off immediately after.

Open the cover and, with a sharp blade, remove the silicone protection to reveal the battery secured by a metal spring. Pry it up until it lifts; you will find a second tab on the underside.

It is a 2450 battery; replace it, re-solder the upper latch, and seal it with silicone. Close the cover.

Refit the fixing screw and all other accessories you removed, following the reverse order. Check the weight, which should be the same: 43 grams, and then refit it into the tyre with the same tool used to remove it. What seemed impossible has been accomplished!