1. The input power supply can use a very common 5V power supply circuit, saving the trouble of having a special charger.2. The battery in series can provide higher working voltage and power with the equipment, the chief officer can improve the entire power supply system and efficiency, and the multi-series high voltage can improve the need for high voltage such as the motor power amplifier power supply heating wire and so on.3. The single chip completes the 5V power supply boost and current charge management circuit, simplifying the circuit, saving the board volume and the number of components required, so it is a comprehensive cost reduction solution.
There are two ways to boost the battery voltage. One is to connect two or more batteries of the same model in series to achieve the purpose of boosting the voltage. The other is to use adjustable booster module to achieve the purpose of boosting pressure.