Olu luhlu lwe-AC oluphathwayo lwe-charge tester ye-charging tester ikakhulu inomlinganiselo wombane wokutshaja, isikhokelo solawulo lwesekethe (elawulwa ngokutshaja iswitshi) kunye neminye imisebenzi, inqanaba elinye lesithathu eliqhelekileyo.Ngokulinganisa i-voltage yokutshaja, unokugqiba ukuba imfumba yokutshaja iyaphuma njengoko kufuneka.Ngokutshintsha iswitshi yokutshaja, unokugqiba ukuba ingaba imfumba yokutshaja iyavumela kwaye ivale imveliso njengoko kufuneka.Isicwangciso sephaneli yemveliso ethile eboniswe kuMzobo 1, ubukhulu becala inomgangatho waseYurophu wokutshaja i-AC ujongano lwesokhethi yemoto, iswitshi yolawulo lweplagi, iswitshi yolawulo lokutshaja, imitha ye-volt ye-AC, ukubunjwa kwezibuko lokwandiswa komthwalo.