| 摘要 |
The charging voltage used for this purpose is the output voltage from a source of d.c. voltage providing a variable level of output voltage. A characteristic feature of the invention is the fact that charging from a starting mode (1) is executed in accordance with a cyclical charging programme (10) which is repeated until the battery has been found to be fully charged. A rest mode (13) then occurs during which the battery is not charged, but the battery voltage is measured continuously. The rest mode (13) is interrupted immediately, and the aforementioned charging programme (10) is re-started if it is noted in the course of measuring the votalge that the battery voltage has dropped below a first predetermined value. Once the rest mode (13) has lasted for a predetermined period, a discharging phase (17) will be initiated which involves the battery being discharged in accordance with a discharging programme during which the battery voltage is measured continuously. The discharging phase (17) is interrupted if it is noted in the course of measuring the voltage that the battery voltage has dropped below a second predetermined value. Once the discharging phase (17) has been interrupted or completed, the charging programme (10) is restarted. |
