At the rental desk of the ELTE University Library you have the opportunity to rent an external battery (power bank) suitable for charging mobile phones and tablets for the duration of your stay in the library. The condition for renting a power bank is a valid library card. You have to return the battery to the reader’s service staff before departure. In case of a failure to do so we will charge a late fee of HUF 1,500 / day. In case of loss or damage to the battery, you have to reimburse the purchase price of it.