mrneutron
February 14, 2021, 8:41pm
16
I’m trying a battery longevity experiment with one of my Sonoff SNZB-02 temp sensors.
The Itead company puts CR2450 lithium coin batteries in their Sonoff Zigbee devices.
Even though the CR2450 batteries have greater power capacity than the CR2032, I’ve found that the batteries can’t hold a full charge for a full week in temperatures hovering around 0F. The cold makes the battery Voltage decrease and that causes Sonoff devices to go offline, or malfunction, as they presumably reboot, over and over.
With outdoor temperatures hovering around 0F degrees, my outdoor SNZB-02 batter…