USCG’s Office of Design and Engineering Standards (CG-ENG) issued CG-ENG Policy Letter No. 02-19, “Design Guidance for Lithium-Ion Battery Installations Onboard Commercial Vessels” to improve the plan approval process for commercial vessel propulsion or electrical systems powered by installed Lithium-ion batteries.
Concerning the increased interest in Lithium-ion batteries, many are the concerns following due to the complexity of the systems and the lack of regulations or marine standards on the...
https://safety4sea.com/guidance-for-commercial-vessels-using-lithium-ion-batteries/