Abstract: A method of providing sterile, charged batteries for use in a sterile field which includes the steps of sterilizing at least one battery and a battery charger, transferring the sterilized battery and charger in a sterile state to the sterile field and charging the battery with the battery charger. The battery charger is adapted to withstand exposure to the environment present during the sterilization process. The sterilizing step may be preceded by an initial charging step in which the battery is charged with a battery charger. A sterilizable battery charger permits implementation of the method.