The primary objective of developing the best battery technology for electric boats is to increase performance while reducing the impact on the environment as much as possible. Currently, the most preferred option is lithium ion batteries which are lightweight, compact, offer high energy density and rechargeable cycle life. These batteries are mostly used in marine applications, as the batteries are built to perform in extreme environments and deliver consistent power. Furthermore, solid-state batteries have also started gaining prominence due to their operational advantages of better energy coverage and advanced safety features. As more and more people look for environmentally friendly boating spaces, it becomes increasingly important to purchase the best battery for electric boats.