Battery power management apparatus and method

An apparatus, comprising:

• a first battery, wherein the first battery is capable of providing electrical power to a first load of a vehicle, a premises, or an article, at a selected time, wherein the first load does not draw current when a system of the vehicle, the premises, or the article, is not operating;
• a second battery, wherein the second battery is capable of providing electrical power to a second load of the vehicle, the premises, or the article, wherein the second load draws current when the system is not operating or is non-operational;
• a first switch, wherein the first switch is capable of disconnecting the first battery from a first circuit containing the system;
• a second switch, wherein the second switch is capable of connecting the first battery to the first circuit containing the system and is capable of connecting the first battery to a second circuit containing the first load;
• and
• a battery recharger, wherein the battery recharger recharges both the first battery and the second battery simultaneously when the system is operating, wherein the second battery provides electrical power to the second load when the battery recharger ceases to operate or becomes non-operational.