Elektrikel konduktiviti bilong kopa em i namba tu bihain long silva, em i save kamap long 58.5 MS/m (milien Siemens long wan wan mita) long 20 digri. Dispela pasin i mekim em i kamap gutpela samting long ol 'high-voltage' na 'high-current scenarios. Tasol, 'electrical conductivity' bilong aluminium em inap olsem 37.7 MS/m, we em i 64.5% tasol bilong 'copper'. Aninit long wankain kros-seksen eria, 'current-carrying capacity bilong ol aluminium busbars i klostu 30% daunbilo long ol kopa busbars. Long kisim wankain 'electrical conductivity', ol i mas skruim 'cross-sectional area' bilong ol 'aluminium busbar', na dispela i mekim volium na hevi bilong en i go antap.
Tasol, bikpela densiti bilong kopa (8.96g/cm3) i save bringim ol hevi tu. Long ol taim we ol i nidim laitpela disain, ol 'aluminium bar' (wantaim hevi bilong 2.7g/cm3) inap long kisim wanpela hevi we i liklik long ol kopa bar sapos ol i skruim 'cross-sectional area' bilong ol. Olsem, long koneksen bilong ol bateri pek bilong ol nupela eneji kar, ol i save yusim ol aluminium bar bikos long hevi bilong en, tasol ol i mas mekim 'surface oxidation treatment' long strongim 'corrosion resistance' bilong en.
