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Battery charging method and apparatus using initial charging step with gradually increasing charging current, quick charging step with large charging current and final charging step with decreasing charging current
Battery charging method and apparatus using initial charging step with gradually increasing charging current, quick charging step with large charging current and final charging step with decreasing charging current
A battery charging method for charging a battery such as a lead acid storage battery quickly, and a battery charging apparatus used in carrying out the battery charging method, includes an initial charging process between times 0 to t1, a quick charging process between times t1 to t2 and a final charging process between times t2 to t3, carried out step-wise and continuously. In the initial charging process, a charging current whose volume of electricity is increased gradually is applied. In the quick charging process, a charging current whose volume of electricity is larger than the initial charging process is applied intermittently to a battery while watching a voltage. In the final charging process, a charging current whose volume of electricity is reduced gradually is applied to the battery when the voltage has reached a charge-end voltage. Thereby, it is possible to charge in a very short time, and to penetrate the charging into electrodes without damaging the battery.
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