be a sheet of lexan u00ae lexan u00ae is a registered trademark of sabic innovative plastics ip b v having a business address of plasticslaan 1 4612 px bergen op zoom netherlands and lexan u00ae is commercially available and well known to those having ordinary skill in the art the first foam layer 70 abuts against and is joined with the metal layer 68 and the first foam layer 70 abuts against and is joined with the second foam layer 72 the second foam layer 72 also abuts against and is joined with the plastic sheet 74 the second side wall 58 is structurally identical to the first side wall 56 and includes a metal layer 68 a first and second foam layers 70 a 72 a and a plastic sheet 74 a the first foam layer 70 a abuts against and is joined with the metal layer 68 a and the first foam layer 70 a abuts against and is joined with the second foam layer 72 a and the second foam layer 72 a abuts against and is joined with the plastic sheet 74 a the metal layer 68 the first foam layer 68 the second foam layer 72 and the plastic sheet 74 are joined with an adhesive the cover 66 of the battery housing 54 has opposed exterior and interior sides 78 80 and a service disconnect 82 is joined to and extends from the exterior side 78 the service disconnect incapacitates the battery 50 preventing the possibility of electric shock to a service technician or damage to the battery during service or repair joined to the interior side 80 is a plastic sheet 84 and a foam cover sheet 86 is joined to the plastic sheet 84 such that.