The new markets are: Chattanooga, Tennessee; Cincinnati; Cleveland/Akron; Columbia, South Carolina; Columbus, Ohio; Detroit; Knoxville, Tennessee; Las Vegas; Pittsburgh; Providence, Rhode Island and Reno, Nevada.
The program is now available at Nissan Leaf dealers in 38 markets in the U.S. and is offered to those who buy or lease a new Leaf.
"We know that public charging is a key element in providing additional range confidence for electric-vehicle drivers and free public charging is a great way to make Nissan Leaf an unrivaled value for the average American driver," said Brian Maragno, director of Nissan electric vehicle sales and marketing, in a statement.
The promotion includes access to fast chargers that can charge a Leaf battery pack from empty to 80 percent in about 30 minutes.
The base 2016 Leaf has a driving range of 84 miles, according to the EPA. The 2016 Leaf SV and SL models with the 30 Kw/h battery pack have a 107-mile driving range.
Nissan sold 1,096 Leaf electric cars in June, a decline of 47 percent versus June 2015, according to the automaker's monthly sales report.
Low gas prices are still proving to be a major influence on car shoppers.
"Pump prices are holding relatively steady and remain at their lowest levels for this time of year since 2005," AAA reported just ahead of the Independence Day holiday.
The average price for a gallon of unleaded gasoline stood at $2.26 on Tuesday, compared to $2.76 a year ago, according to the AAA Daily Fuel Gauge Report.
The U.S. Department of Energy says there are 13,939 public charging stations for electric vehicles in the U.S, with 34,417 charging outlets.
Edmunds says: Car shoppers in 11 new markets get another good reason to consider the Nissan Leaf.