| 摘要 |
<p>PROBLEM TO BE SOLVED: To decrease a temperature difference between battery cells.SOLUTION: A battery pack 20 is stored in a case 21. The case 21 is equipped with a counter weight 22 for balancing with a load mounted on a fork. On a weight body 24 of the counter weight 22, a battery module 40 and a battery module 50 are provided. The battery module 40 and the battery module 50 have end portions provided with FET relays on the opposite side. The battery module 40 and the battery module 50 are not adjacent to each other at the end portions provided with the FET relays.</p> |
