| 摘要 |
A battery pack (200) is provided with: a plurality of battery modules (100); outer cases (20a, 20b) having the battery modules (100) housed therein; a sensor (40), which detects water in the outer cases; and a lid section (50), which is provided to the outer cases (20a, 20b) for the purpose of discharging the water. The lid section (50) is opened on the basis of results of the water detection performed by means of the sensor (40). |
