Personally I would cancel that order for the battery box. You can do so from the order screen on Amazon.
Universal fit holds 24-, 27-, 30- and 31-series batteries. Size: 11-1/2"H with lid. Base: 13-1/2"L x 7-3/8"W.
That is a full size battery box as in one that works for a car battery. It is HUGE! It will hold 4 of the batteries you bought.
You can put one of these into most anything.
My cell phone lives in a waterproof case while on the boat. Then again mine is a small boat that always has salt water splashing around in it.