Apologies for not giving an update sooner. Real-life™ events are limiting the time I can spend on this sort of hobby. Nonetheless I’ve had the redesigned sensor housing for the multipurpose sensor ready for quite a while, but I never got around to actually upload it to Thingieverse until today. So here it’s, enjoy it:
I’m now running all my ST sensors on AAA batteries. So far so good, but it’s only been a couple of months, so it’s too early to give some battery life stats. The new firmwares pushed to these sensors on September 2018 however do make them report the battery level differently, fluctuating a lot more. So it’s normal if the sensors report 100% battery for only a few days and then start going 80%, 60%, back to 80%, etc. This is what I’ve been seeing at least. I’ve also had a sensor that was still with the CR2450 run on reportedly 1% battery for a full month and still work fine.