Method and apparatus for determining battery characteristics

摘要: A battery charging system (200) comprises a pack (206) and charger (202). Battery includes thermistor (212) for determining the temperature of zener diode (210) in parallel with informing (202) current capacity or another parameter. Charger transistor (220) (214) effectively switching between measuring at input terminal (224). This reduces number contacts required to measure two parameters as compared prior art.