| 摘要 |
PROBLEM TO BE SOLVED: To reliably discharge drain in a battery case with a simple structure without damaging peripheral equipment, floor, or the like. SOLUTION: A plurality of battery cells 12 are stored and connected in series in the battery case 11 to form a battery device 10. A drain hose 13 for discharging drain is provided at the bottom side of the battery case 11, and holding members 14, 14 for holding the open edge of the drain hose 13 upward are provided on the outer surface of the battery case 11. The drain hose 13 is formed by a flexible, transparent synthetic resin. COPYRIGHT: (C)2008,JPO&INPIT
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