The vessel—designed to carry heavy loads at sea—required not only a high-performance propulsion system but also an intelligent battery architecture, safe BMS integration, and thermal management that could endure harsh marine conditions. Brogen was chosen as the key electrification partner to deliver the Battery + BMS + Integration solution.
The client approached Brogen with the concept for a 6-ton electric boat, requesting an end-to-end energy storage system that was powerful, scalable, and compliant with maritime safety regulations.
We initially proposed a solution using CATL’s battery platform:
Each group was controlled by a single BMS, which avoided unnecessary data transmission complexity. We also proposed hot-swappable BMS units for redundancy and a dedicated control cabinet (similar to an electric distribution box) to interface with the VCU (Vehicle Control Unit).
We guaranteed a battery degradation rate of no more than 20% over five years, assuming a maximum of 400 full charge cycles per year. The system also supported fast charging up to 180kW—a critical requirement for commercial marine operations.
However, during later project stages, our client emphasized the need to comply with stringent maritime redundancy standards. This required complete physical and logical isolation between independent battery packs—spanning electrical systems, thermal management, mechanical structures, and BMS units.
In response, Brogen pivoted to a more robust system using EVE’s industrial-grade battery modules. The final system includes:
The final solution uses a three-layer BMS structure for precision control and system safety:
Safety modules such as SBSU (Safety Battery Sensor Unit) are built into the packs for independent thermal protection and redundancy—critical for marine safety compliance.
| Battery Cluster | Description |
| Combination mode | LF105-2P180S |
| Nominal voltage | 576 V |
| Nominal capacity | 210 Ah, useable capacity: 168Ah @ 80% DOD |
| Voltage range | 522~630V |
| Nominal energy | 120.96 kWh |
| Weight | About 1.1T (with rack) |
| System rated charge discharge current | 130.2 A |
| Battery Group | Description |
| Combination mode | LF105-4P180S |
| Nominal voltage | 576 V |
| Nominal capacity | 420Ah, useable capacity: 336 Ah @80% DOD |
| Voltage range | 522~630 V |
| Nominal energy | 241.92 kWh |
| Weight | About 2.2 T（with rack） |
| Overall size | See layout drawing. |
| Charge and discharge interface | Charge and discharge the same mouth |
| Battery system rated charge discharge current | 260.4A |
| Battery System | Description |
| Combination mode | 2* LF105-4P180S |
| Nominal voltage | 576 V |
| Nominal capacity | 2*420 Ah, useable capacity: 2*336 Ah @80%DOD |
| Voltage range | 522~630 V |
| Nominal energy | 483.84 kWh |
| Weight | About 4.4 T (with rack) |
Following project delivery, the client sent Brogen a formal letter of thanks.
Below is an excerpt from the letter:
“I am writing to express my heartfelt gratitude for the exceptional support and collaboration provided by your team on the groundbreaking project of the first-class CCS electric ship in Spain. Your dedication and expertise have been instrumental in the successful delivery and ongoing support of this venture.”
“It has been six months since the project’s completion, and I am pleased to report that it is running exceptionally well, exceeding our expectations in many aspects.”
“Your team’s ability to address challenges with professionalism and efficiency has been a major factor in the project’s success.”
Our Carbon Commitment: Supporting Marine Decarbonization
Ships account for nearly 3% of global greenhouse gas emissions, and the maritime industry is under growing pressure to decarbonize. From harbor tugboats to inland ferries, Brogen believes electrification is not only possible—it’s necessary.
We are committed to helping shipbuilders, fleet operators, and governments transition to electric marine platforms. With advanced Battery, BMS, and thermal management solutions tailored for harsh marine conditions, we offer global support for low-carbon transformation.
Whether you're designing a commercial vessel, offshore workboat, or pleasure craft, we’re ready to power your next-generation marine project—safely, efficiently, and sustainably.
Partner with Brogen Today
Looking to electrify your boat or marine fleet with reliable battery and BMS solutions? Contact Brogen’s technical team to explore tailored solutions for your maritime decarbonization goals.
The vessel—designed to carry heavy loads at sea—required not only a high-performance propulsion system but also an intelligent battery architecture, safe BMS integration, and thermal management that could endure harsh marine conditions. Brogen was chosen as the key electrification partner to deliver the Battery + BMS + Integration solution.
The client approached Brogen with the concept for a 6-ton electric boat, requesting an end-to-end energy storage system that was powerful, scalable, and compliant with maritime safety regulations.
We initially proposed a solution using CATL’s battery platform:
Each group was controlled by a single BMS, which avoided unnecessary data transmission complexity. We also proposed hot-swappable BMS units for redundancy and a dedicated control cabinet (similar to an electric distribution box) to interface with the VCU (Vehicle Control Unit).
We guaranteed a battery degradation rate of no more than 20% over five years, assuming a maximum of 400 full charge cycles per year. The system also supported fast charging up to 180kW—a critical requirement for commercial marine operations.
However, during later project stages, our client emphasized the need to comply with stringent maritime redundancy standards. This required complete physical and logical isolation between independent battery packs—spanning electrical systems, thermal management, mechanical structures, and BMS units.
In response, Brogen pivoted to a more robust system using EVE’s industrial-grade battery modules. The final system includes:
The final solution uses a three-layer BMS structure for precision control and system safety:
Safety modules such as SBSU (Safety Battery Sensor Unit) are built into the packs for independent thermal protection and redundancy—critical for marine safety compliance.
| Battery Cluster | Description |
| Combination mode | LF105-2P180S |
| Nominal voltage | 576 V |
| Nominal capacity | 210 Ah, useable capacity: 168Ah @ 80% DOD |
| Voltage range | 522~630V |
| Nominal energy | 120.96 kWh |
| Weight | About 1.1T (with rack) |
| System rated charge discharge current | 130.2 A |
| Battery Group | Description |
| Combination mode | LF105-4P180S |
| Nominal voltage | 576 V |
| Nominal capacity | 420Ah, useable capacity: 336 Ah @80% DOD |
| Voltage range | 522~630 V |
| Nominal energy | 241.92 kWh |
| Weight | About 2.2 T（with rack） |
| Overall size | See layout drawing. |
| Charge and discharge interface | Charge and discharge the same mouth |
| Battery system rated charge discharge current | 260.4A |
| Battery System | Description |
| Combination mode | 2* LF105-4P180S |
| Nominal voltage | 576 V |
| Nominal capacity | 2*420 Ah, useable capacity: 2*336 Ah @80%DOD |
| Voltage range | 522~630 V |
| Nominal energy | 483.84 kWh |
| Weight | About 4.4 T (with rack) |
Following project delivery, the client sent Brogen a formal letter of thanks.
Below is an excerpt from the letter:
“I am writing to express my heartfelt gratitude for the exceptional support and collaboration provided by your team on the groundbreaking project of the first-class CCS electric ship in Spain. Your dedication and expertise have been instrumental in the successful delivery and ongoing support of this venture.”
“It has been six months since the project’s completion, and I am pleased to report that it is running exceptionally well, exceeding our expectations in many aspects.”
“Your team’s ability to address challenges with professionalism and efficiency has been a major factor in the project’s success.”
Our Carbon Commitment: Supporting Marine Decarbonization
Ships account for nearly 3% of global greenhouse gas emissions, and the maritime industry is under growing pressure to decarbonize. From harbor tugboats to inland ferries, Brogen believes electrification is not only possible—it’s necessary.
We are committed to helping shipbuilders, fleet operators, and governments transition to electric marine platforms. With advanced Battery, BMS, and thermal management solutions tailored for harsh marine conditions, we offer global support for low-carbon transformation.
Whether you're designing a commercial vessel, offshore workboat, or pleasure craft, we’re ready to power your next-generation marine project—safely, efficiently, and sustainably.
Partner with Brogen Today
Looking to electrify your boat or marine fleet with reliable battery and BMS solutions? Contact Brogen’s technical team to explore tailored solutions for your maritime decarbonization goals.
Contact Brogen to find the electric vehicle power solutions that best fits your business.
