Patent attributes
The present invention is designed to provide a secondary battery accommodation case with improved exterior surface having no parting line in two or more exterior faces out of four exterior faces encircling the battery accommodation portion. It comprises a substantially rectangular bottom case 11 having a battery accommodation portion 18 for accommodating secondary batteries 13 and a top case 12 to be assembled with the bottom case 11 for closing the battery accommodation portion 18. In the assembled condition of the top case 12 and the bottom case 11, the exterior face of the top case 12 closing the secondary battery accommodation portion 18 is made equal to or lower than two or more open edges 15a˜15d out of four exterior faces 11b˜11e encircling the battery accommodation portion 18 in the bottom case 11.