| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular power source device capable of preventing the occurrence of a battery partial decrease when combinedly using an equalizer and a circuit shut-off switch, in a power circuit for connecting a low voltage load circuit and a high voltage load circuit to a plurality of batteries connected in series.SOLUTION: A power circuit 11 comprises an equalizer 19 for preventing a partial decrease in respective batteries 12 and 13, a disconnecting switch 22 capable of electrically cutting off the low voltage side battery 12 and a disconnecting relay 23 capable of electrically cutting off the high voltage side battery 13. A machine controller 26 starts an engine controller 28 by turning on an engine key relay 27 after turning on the disconnecting relay 23. |
