There are 10 of them and all are free to use.

It certainly costs some coin to park at Denver International Airport, but charging is free.

Just days ago, Denver International Airport celebrated the opening of 10 Level 1 (ideal for the long-term parking typically associated with airports) charging stations.

Illinois-based Telefonix  provided the chargers to Denver International Airport at no cost.  The stations are claimed to require little maintenance, thus lessening the costs for the airport.

For those who plan on being at Denver International Airport, there are "five stations in both garages on level 1 between rows E and F," according the Denver Post.

All stations are operated on a first-come, first-served basis.

Source: Denver Post