There is something odd about the battery life on the Ikea motion sensor. I use it in our bathroom and it's activated multiple times per day. The first battery

There is something odd about the battery life on the Ikea motion sensor. I use it in our bathroom and it's activated multiple times per day. The first battery lasted about 3 months but the second battery has been going for over a year. There are some reddit threads but I never got a clear answer.