Lithium-ion batteries are essential for powering embedded systems but require safe and efficient charging algorithms to prevent degradation and ensure user safety.
Key phases of a safe charging algorithm include Pre-Charge, Constant Current (CC) Phase, Constant Voltage (CV) Phase, and Termination, with temperature monitoring throughout.
Implementing the algorithm in embedded firmware involves ADC Sampling, State Machine for charging states, Timers and Timeouts, Safety Cutoffs, and Communication Interface for smart batteries.
Choosing the right charge controller is crucial, with options such as MCU Firmware, Battery Management ICs, or a Hybrid Approach, while following battery cell manufacturer specifications is essential for safety and performance.