Patent ID: 7068013

Claim:
A battery system comprising: a battery; a thermistor, with a first end and a second end; a memory device; a plurality of contacts adapted to be communicatively coupled with a battery charger including a battery data contact, a battery clock contact; and wherein the battery charger selectively performs at least one of clocking the memory device and reading a value of the thermistor, through one of the battery charger clock contact and the battery data contact; wherein the memory device comprises a data port communicatively coupled to the battery data contact and a first end of a voltage identifying element, and a clock port communicatively coupled to the battery clock contact and the first end of the thermistor; and wherein the voltage identifying element includes a second end, the first end of the voltage identifying element being communicatively coupled to the battery data contact, for identifying a voltage at the battery data contact, and a switch, communicatively coupled between the second end of the thermistor and the second end of the voltage identifying element, for selectively reading a value of the thermistor and outputting a clock signal to a memory device clock port.