Safe and compact energy storage solutions
Marine batteries are used as energy storage and power supply for propulsion, significantly reducing fuel consumption, maintenance costs, and emissions. With improved capacity-to-weight ratio from lithium-ion technology and growing demand for lower emissions, batteries have become an increasingly attractive option for the large-scale energy supply in the maritime sector. Lehmann Marine is dedicated to supplying the marine industry with safe and compact energy storage solutions (ESS).
The flexible CUBE battery system

CUBE provides a modular design with superior energy density. The flexible energy storage is scalable from a few kWh to several MWh and enables an optimal use of space. Any scale of power storage is available by freely configuring modular units in strings of up to 1,000 VDC. They include an integrated Battery Management System (BMS), gas exhaust, pre-charge functionality and sophisticated and patented air cooling technology for safe and reliable operation. CUBE is type-approved by Bureau Veritas, DNV, Lloyd's Register and RINA.
The water-cooled 2C AQUBE battery system
AQUBE features the compact and flexible design of our proven CUBE Battery System and the sophisticated water cooling technology based on our established COBRA Battery System. This combination results in the high-power energy storage solution AQUBE that incorporates safe lithium iron phosphate (LFP) cell chemistry with a continuous 2C charge/discharge rate. Any scale of energy storage is available by freely configuring modular units in strings of up to 1,000 VDC.


Upcoming trade fair
electric & hybrid marine expo
June 24-26, Amsterdam