Sometimes it’s the batteries they came with. They can sit at zero for a long time. Just make sure you
have last seen and online/offline enabled and you will know if it is really dead.
Be aware z2m recently changed battery percentage calculation in 1.27. The reported percentage is significantly lower now.
Motion sensors all through the house still on original batteries more than 3 years - and still more than 30% left. Best battery life of anything I have seen.
The temperature/humidity sensors last way shorter - about 12-15 months.
Just noticing a drain in my Aqara sensors when paired via ZHA and Sonoff Zigbee stick . I see on above posts much longer battery life, is that because they are paired to Aqara hub?
I use deconz, battery life for aquara door/windows sensors seems to be forever (well I’ve changed non in about 3 years). Climate sensors about 18 - 24 months.
Sonoff ZBDongle-P with both ZHA and z2m. I have at least one of most of the aqara sensors. Oldest are now 1 yr+ with no sign of needing change anytime soon. Newer units all seem to be on the same curve.
Actually, I did have one of the newer door sensors that would drain the battery in a matter of days. As one out of 30+ units, I considered it an anomaly, but guess it could be more common than I assume. It remained functional all the way down to 2.3v.
i have like 20 aqara, they seem to last forever indeed
only 1 temp sensor eats batteries, no idea why
Interesting that one was battery devouring.
I have a bunch of new Aqara devices and set up the first Temperature sensor right beside the hub.
In HA, It started at ~80% for a few hours then jumped to 100%. Over a day it’s dropped to 91% and now it reads 88%. Could this be a bad or weird reading? Or could I have a battery devourer on my hands?
When I get time to set up some of the other sensors I guess I’ll know more and can compare.
I have the same problem. Do you have a solution now?
I just bought aquara temp sensor, run it for 2 days and battery look like this
With this rate it will be dead in a week. Door sensor is on 100% for the same time frame.
Could it be faulty piece? Or is it common with this sensor?
I have a temp sensor that went from 100% to 48% in around a week, since then (maybe a month on) and it’s still at 48%. Think it may be the batteries they come with. Others have discharged more evenly, All still last a long time.
Thanks. I’ll see in next couple of days.
Note that this is not limited to Aqara devices. I had a Hue dimmer switch that worked flawlessly for 12 months… then something changed (perhaps a Deconz update? A reboot? not sure…) and it started eating batteries – about 20% a day.
Replaced it with a new one… and it works fine (shrug).
You replaced the whole switch?
It seems, this is also my case. Drop has stopped after a week at approx 50%.
Are you using the Aqara hub or ZHA? What is acting as the routers for the sensors? I have noticed a big difference switching from sonoff to thirdreality. Sonoff seems to drain the battery.
Has anyone figured out what is going on with these sensors that are draining so quickly? I have one of the zigbee temp sensors connected via ZHA and it dropped 20% in one day!
I also thought my battery was draining, but then when looking at the history, it shows it leveling off after a few weeks (and oddly even going up at times). Hopefully your battery didn’t continue to drain
I see that quite a bit too. Is the battery cell dropping voltage initially but then levelling out for most of the rest of its life? What’s the science behind what’s happening here?
I think it’s temperature and the way the battery percentage is calculated.