| 摘要 |
A motor installation comprises, a first battery (1), a second battery (2), first and second switches (3a, 3b), a starter motor (4), and a high current switch (6). The first battery has an earth terminal connected to the installation earth. The high current switch connects the earth terminal of the second battery to the installation earth. The positive terminals of the batteries are connected by a common positive line. Operation of the first switch closes the high current switch, thus connecting the batteries in parallel. The second switch operates the starting motor. The second switch may be inhibited from closing until the first switch has been operated. The first and second switches may comprises respective poles of a rotary multipole switch e.g. an ignition switch. A timer circuit (8) may be provided to re-open the high current switch after a predetermined time. A voltage sensing circuit may be provided to sense the voltage when the voltage across the first battery reaches a predetermined level and close the high current switch to charge the second battery. The system may be provided in kit form. An electrode plate for a lead acid battery comprising an apertured frame is also disclosed. |
