Lithapo tsa rona tsa ho tjhaja tsa EV li entsoe ka mokhoa o thata bakeng sa boleng bo tšepahalang, li tsamaellana le EU RoHs 'me li netefalitsoe ke CE le TUV.Thepa ke TPU, e laolang bophara ba ka ntle le ho boloka thapo e le bonolo ha e kobehile, hape e hanyetsana le abrasion, oli, ozone, botsofali, mahlaseli a kotsi le mocheso o tlase, ho etsa bonnete ba hore sehlahisoa se ka sebelisoa libakeng tse fapaneng le bokahohle bo botle.