摘要 |
According to one embodiment, a device includes a detector, a charging circuit, a notificator, and a measuring module. The detector detects an operating cycle for a battery having serially connected cells. The charging circuit charges the battery in accordance with a notified charging voltage value and a notified charging current value. The notificator notifies the charging circuit of a first charging current value and a first charging voltage value which is based on the operating cycle. The measuring module measures voltage values of the cells. The notificator notifies the charging circuit of the first charging voltage value and a second charging current value less than the first charging current value when a maximum voltage value of the voltage values exceeds a threshold voltage value. |