| 摘要 |
An electrical charging device for preventing an erroneous electrical charging of a non-rechargeable battery includes a battery cell voltage sensing circuit and a switch control circuit for controlling an electrical charging in response to a presence or a non-presence of a battery cell voltage detected by this circuit. When a battery case houses one type of primary batteries, the switch control circuit prevents electrical charging when the voltage is detected, but permits electrical charging when the voltage is not detected. For another type of primary battery, the switch control circuit prevents electrical charging when the voltage is detected and it prevents electrical charging when the voltage is not detected. |
