This charging technique involves a constant high current to charge the battery until it reaches a specified voltage level. At this point, the charging stops, and the battery undergoes depolarization through high or low current discharge. This cycle of charging and discharging occurs in succession. The discharge frequency intensifies with more power used during charging, while the charging pulse width reduces. A fully charged battery is achieved when the amount of discharge and charge is virtually equal, prompting an immediate end to the charging.
In order to achieve fast charging for batteries, various methods have been developed both domestically and internationally. One such approach involves initially omitting any depolarization measures during the charging process. However, depolarization measures are eventually introduced, leading to a decrease in the pulse width of charging. This causes a rapid decline in the average charging current and ultimately prolongs the overall charging time.