used herein are for the purpose of description and should not be regarded as limiting the use of u201c including u201d u201c comprising u201d or u201c having u201d and variations thereof herein are meant to encompass the items listed thereafter and equivalents thereof as well as additional items unless specified or limited otherwise the terms u201c mounted u201d u201c connected u201d u201c supported u201d and u201c coupled u201d and variations thereof are used broadly and encompass both direct and indirect mountings connections supports and couplings also although directional references such as upper lower downward upward rearward bottom front rear etc may be made herein in describing the drawings these references are made relative to the drawings as normally viewed for convenience these directions are not intended to be taken literally or limit the present invention in any form in addition terms such as u201c first u201d u201c second u201d and u201c third u201d are used herein for purposes of description and are not intended to indicate or imply relative importance significance or ordering unless otherwise indicated fig1 shows a battery powered mining hauler 1 the battery powered mining hauler 1 is used to transport mined material in underground mining operations the battery powered mining hauler 1 generally comprises a chassis a battery tray 5 one or more batteries 10 shown in fig5 and a battery tray cover.