Professional Charger Design

Small current chargers generally use time control method. Fast chargers with high currents are generally designed with a combination of -△V control and other control methods, with a higher degree of intelligence. The higher the current provided by the charger, the more complex the charge termination control method is, and the higher the cost and price. For users, the choice should be based on their actual situation. If the battery capacity used is not very high, or the charging speed is not particularly important, you can choose an ordinary charger; if it is necessary to choose a higher-priced fast charger, it is best to know more about the performance of the charger and the battery. For example, a charger that can provide a maximum charging current of 1000mA for charging a 600mAh capacity NiMH battery requires that the battery is specifically designed for high-current charging, or to ensure that the charger can provide a smaller selection of currents.