Thanks for your reply. The battery I had is 115 mm * 70 mm* 3.5 mm. If the height of the screw is 5 mm, I think a 1.5 - 2 mm depth battery compartment would be good.
I am sorry that I haven’t received the reply earlier, I have already canceled my order. But I do want to join if a battery compartment is possible. Please let me know if it is possible, and I can try to restore my order. ( hope it is not too late)