Why low-power devices need different battery approaches

Small sensors and wearables may consume very little average power, but their size, access and operating modes create demanding constraints.

Average power is only one number

Short communication bursts, sensor warm-up, processing and standby behaviour can create very different load profiles.

Maintenance can dominate the economics

For a remote sensor, the cost of visiting the installation may exceed the cost of the electronics. Longer service intervals can therefore create significant value.

Energy harvesting changes the system

Small, intermittent inputs require power management and storage designed around low voltage, variable supply and efficient conversion.