Delphi Corporation's new Battery Monitor helps ensure optimal battery performance, making more electronics possible while ensuring sufficient power for starting the engine and, when integrated into a vehicle as part of active battery managament, can help improve fuel efficiency and battery life. Delphi's Battery Monitor precisely measures current, voltage and temperature, the three parameters essential to determining battery state of charge and state of health. The Battery Monitor can boost fuel efficiency by reducing the power the alternator is required to put out during periods when the battery is sufficiently charged, thereby lowering the engine's mechanical load.