Understood. This won't help you much, but I don't think I've ever had to change a remote's battery in the three years since I switched over to Zigbee. I assume

Understood. This won't help you much, but I don't think I've ever had to change a remote's battery in the three years since I switched over to Zigbee. I assume their radios wake up only when the button is pressed, which is at most a few times a day, so the battery drain should be minimal. I use Home Assistant with a Sonoff Zigbee-USB coordinator, just as you do. Those Ikea buttons look pretty ordinary, so I can't think of why they'd have such poor battery life. But they seem to be the only difference between our respective systems. These are the buttons I use most: https://www.aliexpress.us/item/3256802252738635.html https://www.aliexpress.us/item/3256802252738635.html