Workshop: 3 best practices to create a long battery life for IoT devices
summary
Three concrete steps: know your device by measuring active pulses (38 mA peak, ~44 µWh per long SF0 send, ~2.4 µWh per SF5 send) and sleep (~1.44 µA); profile batteries with the opti of the arc from kortek to create discharge curves for specific cells like CR2450 Murata; emulate those profiles to find usable capacity (~410 mAh vs 500 mAh spec) and the cutoff behavior. Resulting estimates: SF0 once/hour ≈ 2.9 years, SF5 four/hour ≈ 10 years, with self‑discharge and sample variance still needing inclusion.
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