CPC H02J 7/007182 (2020.01) [H01M 10/425 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H01M 50/202 (2021.01); H01M 50/269 (2021.01); H02J 7/0034 (2013.01); H02J 7/0045 (2013.01); H02J 7/0047 (2013.01); H02J 7/00306 (2020.01); H01M 2010/4271 (2013.01)] | 8 Claims |
1. A charger comprising:
a battery accommodating unit including a first contact and a second contact configured to be respectively in contact with electrode terminals of a battery accommodated therein;
a high-potential power supply line and a low-potential power supply line to which power for charging the battery is supplied;
a connection switching circuit capable of switching between a first connection state in which the first contact is connected to the high-potential power supply line and the second contact is connected to the low-potential power supply line and a second connection state in which the second contact is connected to the high-potential power supply line and the first contact is connected to the low-potential power supply line; and
a control device for controlling the connection switching circuit to acquire a battery voltage of the battery and perform charging control on the battery,
wherein the control device performs pre-charging on the battery in the first connection state, and when the battery voltage does not exceed a predetermined set voltage, the control device switches the first connection state to the second connection state and performs the pre-charging on the battery, but when the battery voltage exceeds the set voltage, the control device performs normal charging on the battery.
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