| 摘要 |
A method and apparatus for recharging a battery using a constant current source, in which a heat-producing element such as a zener diode (27) is in parallel with the battery (20) to be charged and is thermocoupled to a heat-sensitive switch such as a bimetallic switch (24) in series with the battery. Voltage across the zener diode in excess of a predetermined level causes the zener diode to conduct current, thereby heating it and opening the switch to cut off the current.
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