I have a garage remote that stopped working. I changed battery and it worked again, but only for a few days.
I measured the resistance between the poles of the battery terminals and it was about 760ohms. My assumption is that it should be much greater (ideally infinite). So I noticed that what it seemed to be a capacitor (a surface mounted spec, with a yellowish band) and it had exactly the same resistance, so I thought that either that was not a capacitor or it had failed (because the resistance should be also zero).
To complete the picture that capacitor was just after the battery terminals). I decided to remove it.
The end result is that the remote keeps working and resistance between battery terminals is now off the scale. Hopefully it will not discharge as fast.
What was the purpose of that capacitor? (If it was a capacitor in the first place)