Abstract: Provided is a method of identifying a battery provided with a wireless battery control device, during a battery charging procedure. The method includes connecting the battery to a battery charger and the battery charger supplying a first current to the battery. The wireless battery control device measures parameters relating to the first current. The battery charger generates and sends a first wireless interrogation signal, the wireless interrogation signal including information relating to parameters of the first current. The first wireless interrogation signal is configured such that a wireless battery control device receiving the interrogation signal compares the information relating to the parameters of the current being received by the associated battery to the information relating to the parameters of the first current that was supplied by the battery charger, and the wireless battery control device sends back a first wireless response signal should the information relating to the parameters match.

Abstract: The invention relates to a method and apparatus for calculating the input current being drawn by a power converter. The power converter may be connected to and charging a battery and the method includes the steps of measuring the current and voltage being supplied to the battery, along with the frequency at which the power converter is operating. The voltage being supplied to the power converter may be calculated using a pre-determined relationship with the current and voltage being supplied to the power converter and the frequency of operation. The voltage being supplied to the converter may then be used to calculate the current being drawn by the converter.

Abstract: The invention provides a method and apparatus for operating a battery. The method comprises the following steps. The battery undergoing a first series of charge/discharge cycles, wherein the battery charging profile of the first series of charge/discharge cycles has a first regulation voltage. Monitoring the overall charge input and overall charge output during the first series of charge/discharge cycles and calculating the charge factor of the first series of charge/discharge cycles. The battery undergoing a second series of charge/discharge cycles, wherein the battery charging profile of the second series of charge/discharge cycles has a second regulation voltage. The second regulation voltage being determined in dependence on the calculated charge factor of the first series of charge/discharge cycles.

Abstract: Method of testing a lead battery for the purpose of charging it under optimal conditions, characterized in that it consists in testing the lead battery for the purpose of obtaining information relating to its condition by applying a test current and/or pulse thereto and by increasing the voltage at the battery terminals.

Abstract: Method of testing a lead battery for the purpose of charging it under optimal conditions, characterized in that it consists in testing the lead battery for the purpose of obtaining information relating to its condition by applying a test current and/or pulse thereto and by increasing the voltage at the battery terminals.