M/F Tycho Brahe has a sister ship, M/S Aurora af Helsingborg. The two ships were originally diesel-powered, but were converted in 2017 to full electric propulsion. Each ship has a 4 MWh battery, weighing 57 metric tonnes, located at the top of the ferry between the chimneys.
The Tycho Brahe has a companion vessel, Aurora af Helsingborg, which shares similar characteristics in terms of propulsion and design. Both ships were initially powered by diesel engines but underwent an upgrade in 2017 to utilize full electric propulsion. Each ship features a 4 MWh battery, weighing 57 metric tonnes, positioned at the top of the ferry between the chimneys.