The energy for the drive mechanism comes from an accumulator box with exceptionally efficient CAYAGO-Power High-Energy Li-Ion accumulators. These large and special high-performance accumulators form a high-quality component in the SEABOB‘s overall propulsion concept. Li-Ion is a pioneering technology and a product of space research. These specially-developed longlasting accumulators with a life cycle of approx. 18 years are presently used to power earth-orbiting satellites. After being charged 2,000 times, the CAYAGO-Power Li-Ion accumulator cells demonstrated no significant reduction in performance and no memory effect.