Speaker turns itself on when not plugged in?

I bought this speaker because the seller said that it would not power on. I played around with some of the button combos and reset the jbl and now got it to power on. I tested it with service mode and made sure it is not in service mode. The problem is when I turn the speaker off while it is not charging, it automatically turns itself on (even if it isn't connected to anything via bluetooth). The weird thing is that when it is plugged in, it works fine and will stay off when turned off and works fine in general. I have tried all the different suggestions and even took the battery out, nothing has worked.