Hello, I got a Philips Hue dimmer switch for christmas, and I use it to trigger scenes in Home assistant. Works great, but the battery value is showing as 10% on home assistant. The graph of the readings shows it going down quite dramatically from 53% to 10% in 40 mins. In that time I didnt use the dimmer switch at all, and when I tested the voltage with a multimeter, it said 3 volts, so Im not sure if it is giving incorrect readings.
Does anyone have any sugguestions?
Thank You.
This is quite normal. I have a lot of them and most of them do this and stay at around 3% for a very long time before going down to 0%. And even 0% stays for about 4 months before they actually die.
I also noticed that one that was 3% before I restarted my zigbee network and was about 20% after the restart. So I’ve decided to ignore the battery readings as a whole. I’ve shown my wife where the batteries are and the little screwdriver to open them. 
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