Abstract: This invention includes a power supply having a plurality of cables, each corresponding to a unique electronic host device. The cable includes a memory device having predetermined power characteristics associated with an electronic host device. The cable further includes a unique mating connector for coupling to the electronic host device. The power supply includes a control circuit that reads the power characteristics and configures the power supply to charge the electronic host device. The system allows a user to carry a single power supply with multiple cables as opposed to having to transport many different power supplies.

Abstract: This invention includes a power supply having a plurality of cables, each corresponding to a unique electronic host device. The cable includes a memory device having predetermined power characteristics associated with an electronic host device. The cable further includes a unique mating connector for coupling to the electronic host device. The power supply includes a control circuit that reads the power characteristics and configures the power supply to charge the electronic host device. The system allows a user to carry a single power supply with multiple cables as opposed to having to transport many different power supplies.

Abstract: This invention includes a trickle charging circuit that works with a series charging element to charge battery cells with a low, constant current when the voltage of the cell is below a predetermined operational range. The trickle charging circuit includes a control transistor that is actuated by a current source when both the power supply and undervoltage battery cell are coupled. The trickle charging continues until a minimum operational voltage of the cell is reached. The invention includes a means for rapid charging the cell once the cell voltage is within a preferred operational range. The circuit includes means for charging at other currents, like mid-rate currents, as well.

Abstract: This invention includes a charger with at least two pockets capable of charging both a portable electronic device and a spare battery without charging circuitry in the charger. The invention includes takes advantage of an electronic device having charging circuitry disposed within, and also having external contacts for receiving an auxiliary battery. In a preferred embodiment, the invention couples the auxiliary contacts from a front pocket to battery contacts in the rear pocket. The connections are made directly with no charging circuitry in the series path. In so doing, when the portable electronic device and spare battery are placed in the charger, the portable electronic device's internal charging circuitry charges both batteries simultaneously.

Abstract: This invention is a battery charging system that charges rechargeable battery cells by tracking a voltage profile charging curve across time. As all lithium based, like voltage cells have the same voltage profile across time, regardless of capacity, the invention presents a preferred embodiment of a universal charger capable of charging lithium batteries of varying capacities. Current is treated as a variable dependent upon voltage. Thus, in a preferred embodiment, cells of varying capacities will be charged at an optimal rate, thereby optimizing battery performance. One embodiment uses frequency selection to vary the rate of change in the output voltage of the system, thereby tracking the voltage profile charging curve across time.

Abstract: This invention combines linear charging techniques with ionic relaxation pulse charging to rapidly charge lithium ion batteries to full capacity. The preferred embodiment incorporates a blocking diode and series resistor to multiplex an ionic relaxation control circuit with a linear regulated charging circuit, thereby utilizing a single, common, shared power transistor.