| 摘要 |
PROBLEM TO BE SOLVED: To prevent the period of time during which a battery-operated industrial vehicle can be driving from being shortened by controlling the temperature drop of the electrolyte of the battery after charging the battery. SOLUTION: The voltage of a battery 1 during charging is outputted to a control device 10 by a voltage detecting circuit 22. Based on this voltage, the charging time is determined. An MCU 24 calculates the waiting time by subtracting the charging time from a given time counted from charge-starting time. Then the waiting time is counted by a timer 25 after the charging is finished. When the waiting time is up, the contacts of a magnetic contactor are closed to perform a supplementary charging. Also, a thermistor 31 detects the ambient temperature, based on which the supplementary charging time is adjusted. |
