Patent ID: 7388349
Filing Date: 2008-06-17
Classification: B60L,H01M,Y02E,Y02P,Y02T

Abstract:
1. A vehicle multiple battery system operating a vehicle electrical system connected between a system positive and a system negative terminal, the system comprising: a main battery having a main positive output coupled to an at least one switching device having at least two operating positions and a main negative output; at least one switching device and an at least one standby negative output coupled to the vehicle electrical system negative terminal; and a main electrical circuit comprising a coupling of the system positive terminal with the at least one switching device, the at least one switching device having at least two operating positions to selectively and exclusively couple either the main or the at least one standby battery positive output to the system positive terminal to start and operate the vehicle electrical system; a controller coupled to the main electrical circuit and the one-way charging circuit, the controller switching said at least one switching device based on input from an at least one sensor to selectively and exclusively provide power in each of the switch positions as enumerated, such that the main battery and the at least one standby battery never supply electrical energy to the vehicle electrical system simultaneously.