Disclosed is an infusion system for administering a liquid medicament, particularly insulin. Said infusion system comprises a cannula support unit which is properly attached to a patients body, an infusion cannula to be inserted into the patients body, and a pump unit that can be connected to the cannula support unit and encompasses a pump, a battery for supplying power to the pump, and a storage volume for the medicament that is to be administered. The pump unit and the cannula support unit are adapted to one another in such a way that the pump unit rests against the cannula support unit once the pump unit has been connected to the cannula support unit. The disclosed infusion system also comprises a charging station for the pump unit in order to recharge the battery of the pump unit.
