Supercharging Solar-Powered IoT Devices05 March 2020
In recent years, some manufacturers of IoT sensors and small battery-powered devices have embedded solar panels in their products. The panels harvest energy from ambient light and use this energy to charge the battery, thus extending the time between battery replacements. Perhaps, some vendors claimed, these solar panels could completely eliminate the need for battery replacements.
While the promise of using solar panels to replace batteries and their associated waste is compelling, the reality – and especially for indoor applications – was not as rosy.