The invention provides a method for managing batteries of electric bicycles by using a computer. The method comprises the following specific step: recognizing identity information of every battery. Unusual conditions of charging saturability, over-fast descending of electric quantity of the batteries and the like of the batteries can be monitored, charging can be implemented by different staged charging methods, the problem of vulcanization of the insides of storage batteries which are lack of electricity deeply is eliminated, moreover, by adjustment, harmonic interference is low, flexible boosting and voltage-reduction output of output direct-current voltage can be realized, management of different types of batteries in a large range is implemented, and the service lives of the storage batteries are prolonged.