I have found that if I set the camera's motion sensitivity so sensitively that it also detects movement and consequently records a video sequence (which would be the whole point), the battery runs out in just a few days. Unsuitable for me. If the sensitivity is set very low, it detects virtually no movement and makes no recordings, in which case the battery lasts for a month. I wouldn't buy it again, but I'm happy with the two wired Hue cameras.