One of my older RuuviTags has suddenly taken to sucking batteries dry in a matter of days when it and others previously took years.
Firstly it rapidly drained the original battery (a few years old itself but happily working) with a sudden voltage drop. A replacement Varta cell lasted a couple of days and a fresh Ruuvi-labelled item lasted less than 3 days (pictured below).
No signs of damage, readings (when working) are as expected, hasn’t been immersed in water.
That looks quite OK and there are not visible short circuits. Some component is probably failing or there are small conducting dirt somewhere. You could try to give heat therapy for the device, heat it up to 120C for one hour (without battery and enclosure).
No change, another battery bites the dust. Unless Ruuvi themselves want it back to investigate I will be putting this into the recycling when I am next going past a collection point.
Well, after some sombre reflection, I did use a heat gun and used an IR thermometer to check the Tag was being heated correctly. And it hasn’t helped.
I might be willing to but my recent history of posting to the US of A is not good. A small envelope that needed a CN22 declaration is now into its 4th week of transport.
