He has been doing this since March, 2017, hauling two Lifeline information signs and his classical guitar across Australia.

Mr Mandel will perform at Stockland on Tuesday, May 14 and will continue until Saturday, May 18.

He has raised almost $50,000 for the charity, which provides 24 hour crisis support and suicide prevention services, since he began his tour.

Upon retirement, Mr Mandel said he took up classical guitar for 12 months, playing classical, bossa nova and South American contemporary pieces before debuting professionally in restaurants across Australia.

When asked how Mr Mandel gained the motivation, Mr Mandel said working hard was in his nature.

"It's perseverance, determination, hard work and patience," he said.

"Every individual is different. I have a profound deafness in both ears, almost 100 per cent loss of hearing.

"I was one of the two profoundly deaf children in Australia sent to a normal hearing secondary school.

"To be sent to a normal hearing secondary school, that's what really built up my sense of determination. I was very lucky."

With his hearing aid on and music in front of him, Mr Mandel said he loved to perform, and remind passersby Lifeline was available.

"I've never phoned Lifeline ... I've spent the last 40 years doing a lot of community work. I've been a representative for World Vision Australia and other projects," he said.

"(But) it's a great cause and I've heard good reports."

"After six years of performing in the restaurants, I thought about doing something different. This type of project never happened before in Australia, possibly in the world."

Before he retired, Mr Mandel was a hospital micobiologist and Tai Chi instructor.

He said 100 per cent of all donations went to Lifeline, and funds his trip through super payments.

"Every fortnight I get superannuation payments because I worked 34 years in the hospital," he said.

He said many people thanked him for his support of Lifeline and his music.

"At least 200 individuals whom have phoned Lifeline approached me in my performances to express their satisfaction," he said.

"That keeps me going."