He was born in Budapest and attended the Piarist high school. Sándor Sík had a decisive influence on his life, instilling in him a love of Hungarian literature, the idea of Christian national education, and the ideals of Hungarian Scouting. In 1918, he applied for admission to the Piarist Order, but due to the events of the Hungarian Soviet Republic, he was not able to officially join until August 27, 1919, in Vác. His novice master was János Walter.

He took his perpetual vows on June 20, 1923, and was ordained a priest on July 1, 1923. He began his teaching career at the Piarist high school in Budapest, where he soon became one of the order’s most outstanding educators. Although he showed a deep interest in Hungarian literature, he sought to make an impact not as a literary scholar but as an educator and national mentor. In his teaching, he particularly emphasized the moral content of the works of Zrínyi, Széchenyi, Vörösmarty, Arany, and Ady.

He became a prominent figure in Hungarian Scouting between the two world wars. When Sándor Sík moved to Szeged to become a university professor, Bátori took over a significant portion of his Scouting work in Budapest. He played an important role in organizing the Rover and Water Scout movements, as well as in promoting Hungarian folk culture and community education.

In 1938, he became the director of the Piarist institute in Debrecen. There, he organized the commercial high school program, which he viewed as a tool for the economic and social renewal of the Hungarian middle class. He gave lectures, organized village outreach programs, and sought to provide Christian answers to the social issues of the era.

At the end of World War II, he was taken prisoner of war as a military chaplain, first by the Americans and then by the Soviets. Later, he himself viewed his escape as a special intervention of Providence. He emigrated in 1948: traveling through Vienna, Rome, and Barcelona, he reached the United States, where he became one of the leading figures in the emerging American Piarist community.

First, he helped organize the Piarist school in Buffalo, and then in 1951, he assisted in the founding of the first American Piarist house in Derby. In 1952, together with his fellow Piarist István Gerencsér, he founded the Hungarian Piarist Student Association. He served as house superior, delegate, and then, from 1960, as vice-provincial, by which time the American Piarist community consisted of four houses: Derby, Washington, Buffalo, and Devon.

In 1962, he suffered a heart attack but continued his tireless pastoral and community organizing work. He gave lectures in Hungarian to Hungarian communities in the United States and Canada, wrote articles, worked on a pedagogical book, and also began writing the history of the American Piarist Province. He also released a Hungarian-language literary record.

In 1967, he resigned from his position as vice-provincial, but continued to serve as novice master and assistant prefect. In 1970, he retired to Devon, where he continued to work and maintain pastoral relationships.

He died of a heart attack on March 3, 1975, in the town of Devon. He lived to see the elevation of the American Piarist Vice-Province to a full Province, which took place on January 16, 1975. His funeral was held in Devon, and his remains were laid to rest at the Piarist cemetery in Derby.

His contemporaries remembered him as an extraordinary educator, a defining figure in Hungarian Scouting, and a monk of deep spiritual life.

Magyar Költemények – Hanglemez, Washington DC, 1969 – szerkesztő és előadó