The loan period is, in most cases, 14 days. For certain items, for example cell phone chargers, the loan period might be shorter.
If there are no reservations on a 14-day loan, it will be automatically renewed 3 days before the last loan date, however, the maximum total loan period is 6 months.
Books from the course book collection, that can be borrowed for two days, are NOT automatically renewed. If no one has requested the book, you can renew a book several times through My account, however, the maximum total loan period is 6 months.