Patent ID: 8381852
Filing Date: 2013-02-26
Classification: H04B

Abstract:
1. An electrical system for a motor vehicle comprising: a first electrical power storage sub-system; a power distribution system for auxiliary loads connected to draw power from the first electrical power storage system; a second electrical power storage sub-system having a nominal output voltage of a larger magnitude than a nominal output voltage of the first electrical power storage sub-system; electrical power generation means connected to charge the first electrical power storage sub-system; a voltage step up charger responsive to a state of charge of the second electrical power storage sub-system for transferring charge from the first electrical power storage sub-system to the second electrical power storage sub-system; an internal combustion engine starter system connectable to the second electrical power storage sub-system for energization; the first electrical power storage sub-system being a set of high cycle batteries with the high cycle batteries connected in parallel; and the second electrical power storage sub-system being a set of high output batteries with the high output batteries being connected in series.