Patent attributes
An apparatus, including a first circuit containing a first load of a vehicle and an ignition system of the vehicle, wherein the first load does not draw current from a first battery when the vehicle ignition system is not operating; a second circuit containing a second load of the vehicle, wherein the second load draws current from a second battery when the vehicle ignition system is not operating; a first switch which is capable of disconnecting the first battery from the first circuit; a second switch which is capable of connecting the first battery to the first circuit; and an alternator. The alternator is capable of recharging the first battery and the second battery when the vehicle ignition system is operating. The apparatus is capable of providing electrical power to the second load when the alternator ceases to operate.
