Yeah...if mine accelerates (or brakes) hard enough to snap the battery mounts off, I will be the happiest airhead around.
Those mounts aren't going anywhere. Just because you can come up with a conjectural scenario for failure doesn't mean the actual scenario will lead to failure.
1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
'91 Bill Holland Steel w/Dura Ace
'01 Z3 3.0 Coupe. The Clownshoe.