Complete Guide to Battery + Energy Harvesting Hybrid Power Design

In low-power IoT devices and sensor networks, power system design is a key factor that determines performance, lifespan, and maintenance costs. In particular, combining batteries with energy harvesting in a hybrid power design is gaining attention as a way to ensure continuous power supply and sustainability at the same time. Why Hybrid Power Design Is Needed Using only a battery power source shortens replacement or charging cycles over long-term operation, increasing maintenance costs. On the other hand, relying solely on energy harvesting may result in unstable power output. Combining the two approaches can provide both power stability and operational efficiency . Key Components Energy Harvester – Select the right source for the environment, such as photovoltaic (PV), thermoelectric generator (TEG), piezoelectric device, or RF harvesting module. Battery – Choose lithium-ion, lithium-polymer, or coin cell based on capacity, lifespan, and charge/discharge characteristi...