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Just something to hold that cap on after the battery change. Superglue would work, but might be harder to remove in a few years when next battery replacement is due. I just had mine replaced when one failed. Was getting new tires and the remainder were weak. Still cost $50 each installed and that was steeply discounted. I kept the old ones and may change the batteries and use them next go around.

It is likely cr 2032 battery in most of these sensors. But I just opened one of mine and ordered batteries but found out that a battery cr2450 has the same voltage but more capacity so would last longer ,which is what you really need in order to do the job once and have a peace of mind for even longer that when it was new/original. Isn't it ? Hope it helps

I just opened mine up yesterday. It has a Maxell CR2032HR in it. The HR suffix means high temperature rating (125° C for Maxell. A non HR Panasonic is listed to 85° C). Unless you are operating in a fairly high temperature area, the regular 2032 should stay within its operating range.And the Maxell data sheet publishes an acceleration spec. The voltage was down to just under 1/2 volt, and had failed about two months ago. I am going to clip in a 3 volt battery at my local tire store and see if it works again.

No it is not. You don't just swap them and they magically work. You have to have the electronics to reprogram and activate a new sensor and you have to know how to do it. Put a new battery and its easy to get up and running. Or I wouldn't be watching this video.