Mastervolt is sponsoring Endeavour Green Electric Hybrid Yacht's 250-mile passage of silent cruising through Florida's inland waterways.
Equipped with a Mastervolt Whisper generator for clean electric propulsion, Endeavour will cruise for less than $2 a day, according to Mastervolt.
"Mastervolt is a company that innovates, looks to new solutions and believes in green products like our lithium-ion batteries. This project is a great opportunity for us to support a company that is developing creative, green alternatives," said Menno Ligterink, of Amsterdam-based Mastervolt, in a statement.
Endeavour's cruise will continue throughout the month.