Cable End

A mechanic said the reason the new battery went dead was because the cable ends were corroded very bad?
Monday the battery was dead, jumped it, took it had a new battery put on, 3 days later it was dead again, alternator is charging properly, can corroded ends on the cables cause it to die like that
Yes, corrision can be built up under the cable casing and not seen and also the terminals ends will not make good contact if any corrision is built up on them also
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