A new battery charger for electric vehicles uses pulse-current charging to improve the charging process. By applying different currents in each cycle, the charger can smooth out power delivery and maintain stable output power. This is important for vehicles connected to the grid and those powered by sources like fuel cells. The charger's design includes a special battery-capacitor setup and a control system to handle the battery's power fluctuations. Comparisons with other pulse-current chargers show that this new system is effective in delivering smooth power to electric vehicles.