Key Facts
Product Overview
RAMBSS (Raclan Maritime Battery Safety System) is the first purpose-built modular lithium battery fire safety system designed for the superyacht industry. Each module provides a complete safety enclosure for lithium battery storage and active charging, with integrated monitoring, fire detection, automatic extinguishing, and toxic gas filtration.
The system is built around Panzerholz® enclosures (synthetic resin pressed wood per DIN 7707), each equipped with TRIDENT® coolant (water-based, 100% ecologically safe) + fresh water submersion (2-stage response), multi-stage hydrogen fluoride (HF) gas filtration, active fanned cooling, 80 dB acoustic alarm, thermal switch triggering at ~90°C, and a 90-day emergency backup power supply. RAMBSS modules connect to the vessel's onboard alarm and monitoring control system (AMCS) and provide WiFi remote monitoring via a built-in touch screen interface.
Lloyd's Register Verification
- "Verified as a container as part of an arrangement compliant to MGN 681 (M)" (Lloyd's Register)
- Design Appraisal Document (DAD): TSO-24-013730-F01-DA
Distributed by Mercer Yachting and Ritz Marine. Official distributors for Malta, Sicily and Greece.
Module Sizes
Three module sizes cover every lithium-powered water toy on the market. All modules share the same 60 cm square footprint for consistent stacking and placement.
Module 1
Included in Every Module
- TRIDENT® coolant (water-based, 100% ecologically safe) + fresh water submersion (2-stage response)
- Thermal switch triggering at ~90°C
- 80 dB acoustic alarm
- Multi-stage HF gas filtration
- Active fanned cooling
- Internal charging sockets
- Touch screen interface + WiFi monitoring
- 90-day emergency power supply
Module 2
Included in Every Module
- TRIDENT® coolant (water-based, 100% ecologically safe) + fresh water submersion (2-stage response)
- Thermal switch triggering at ~90°C
- 80 dB acoustic alarm
- Multi-stage HF gas filtration
- Active fanned cooling
- Internal charging sockets
- Touch screen interface + WiFi monitoring
- 90-day emergency power supply
Module 3
Included in Every Module
- TRIDENT® coolant (water-based, 100% ecologically safe) + fresh water submersion (2-stage response)
- Thermal switch triggering at ~90°C
- 80 dB acoustic alarm
- Multi-stage HF gas filtration
- Active fanned cooling
- Internal charging sockets
- Touch screen interface + WiFi monitoring
- 90-day emergency power supply
Key Features
2-Stage Extinguishing
TRIDENT® coolant (water-based, 100% ecologically safe) with multi-nozzle deployment, followed by fresh water submersion for complete thermal runaway suppression.
Blast & Overpressure Relief
Engineered relief paths manage overpressure events during thermal runaway, directing energy safely without compromising enclosure integrity.
HF Gas Filtration
Integrated ventilation with multi-stage hydrogen fluoride filtration. Tested: maximum HF below 95 ppm; 15-minute interval below 34 ppm.
90-Day Backup Power
Internal emergency power supply maintains monitoring and alarm functions for up to 90 days without vessel power.
Touch Screen + WiFi
Built-in touch screen interface for local monitoring. WiFi connectivity enables remote status checks from anywhere on board.
AMCS Integration
Connects to the vessel's onboard alarm and monitoring control system for centralised safety oversight and alarm routing.
Internal Charging Sockets
Charge batteries safely inside the module. Electronics monitor temperature and gas levels throughout every charge cycle.
Custom Finishes
Modules can be specified to millimetre precision with custom exterior finishes to match your yacht's interior design.
Stackable & Linkable
Modular design allows modules to be stacked and linked together for flexible configurations in any toy store or tender garage.
Compatible Water Toys
RAMBSS modules are designed to store and charge batteries from all major lithium-powered water toy brands used aboard superyachts.
Certification & Compliance
RAMBSS has been independently tested and certified by leading maritime and industrial safety bodies.
Lloyd's Register Design Appraisal
Design Appraisal Document (DAD): TSO-24-013730-F01-DA. Verified as a container as part of an arrangement compliant to MGN 681 (M).
DMT TÜV Nord CERT
Test program: M02/22. Independent safety testing and certification by DMT TÜV Nord.
MGN 681 (M) Amendment 1
Aligned with MCA guidance on fire safety and storage of small electric powered craft on yachts. Exceeds requirements in several areas.
Fraunhofer Institute Testing
TRIDENT® extinguishing agent independently tested by the Fraunhofer Institute for effectiveness against lithium battery thermal runaway.
How It Works
Place Charger and Battery Inside Module
Open the module, place your battery charger and lithium battery pack inside the Panzerholz® (DIN 7707) enclosure.
Plug Charger Into Internal Socket
Connect the charger to the module's internal charging socket. The module provides a controlled power supply to the charger.
Electronics Monitor Temperature and Gas
The module's onboard electronics continuously monitor internal temperature and gas levels throughout the entire charge cycle.
Active Fanned Cooling
Integrated fans maintain safe internal temperatures during charging, preventing heat build-up that could initiate thermal runaway.
Thermal Runaway Response
If the thermal switch triggers at ~90°C: the module sounds an 80 dB acoustic alarm, cuts power to the charger, floods the interior with TRIDENT® coolant (water-based, 100% ecologically safe) followed by fresh water submersion (2-stage response), and activates multi-stage HF gas filtration to prevent toxic gases from reaching crew spaces.
Technical Documents
Download manufacturer datasheets, certification documents, and internal dimensions for the RAMBSS system.
Request a RAMBSS Quote
Tell us about your vessel, toy inventory, and available space. We will specify the right RAMBSS configuration, provide a quote, and coordinate worldwide delivery and installation.
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View AllFrequently Asked Questions
What is RAMBSS?
RAMBSS stands for Raclan Maritime Battery Safety System. It is the first modular lithium fire safety system designed specifically for superyachts and commercial vessels. Each module provides Panzerholz® (DIN 7707) containment, integrated TRIDENT® coolant (water-based, 100% ecologically safe) + fresh water submersion (2-stage response), multi-stage HF gas filtration, 80 dB acoustic alarm, thermal switch at ~90°C, WiFi remote monitoring, and connection to the vessel's onboard alarm system (AMCS). Three module sizes are available to accommodate all lithium-powered water toy batteries, from e-foil packs to full Seabobs with integrated batteries.
Is RAMBSS certified for use on yachts?
Yes. RAMBSS holds a Lloyd's Register Design Appraisal Document (DAD: TSO-24-013730-F01-DA), verified as a container as part of an arrangement compliant to MGN 681 (M). The system has also been tested under DMT TÜV Nord CERT test program M02/22, and the TRIDENT® extinguishing agent has been independently tested by the Fraunhofer Institute. In several areas, RAMBSS meets or exceeds the requirements set out in MGN 681.
What batteries fit inside RAMBSS modules?
RAMBSS modules support batteries up to 4.35 kWh (Modules 1 & 2) or 5.25 kWh (Module 3). Module 1 (60 × 60 × 50 cm, ~50 kg) fits e-foil batteries and smaller water toy packs. Module 2 (60 × 60 × 75 cm, ~75 kg) fits larger battery packs and multiple batteries. Module 3 (60 × 60 × 152 cm, ~120 kg) fits Seabobs with their integrated batteries. Compatible with Fliteboard, Audi e-tron Aerofoils, Liftfoils, Awake, Seabob, Lampuga, Radinn, Jetsurf, and all other lithium-powered water toys.
How does RAMBSS connect to the vessel's alarm system?
RAMBSS integrates with the vessel's onboard alarm and monitoring control system (AMCS) for centralised safety oversight. Each module also includes a built-in touch screen interface for local status monitoring and WiFi remote monitoring capability, allowing crew to check module status from anywhere on board. Alarms are routed through the vessel's existing safety architecture.
Does RAMBSS comply with MGN 681?
Yes. Lloyd's Register has verified RAMBSS as a container as part of an arrangement compliant to MGN 681 (M). In several areas, RAMBSS exceeds the requirements set out in MGN 681, including multi-stage HF filtration (tested: maximum HF below 95 ppm; 15-minute interval below 34 ppm), 90-day emergency power supply, and integrated TRIDENT® active extinguishing.
Can RAMBSS modules be customised to fit our toy store?
Yes. RAMBSS modules can be specified to millimetre precision to fit your vessel's toy store or tender garage. Custom exterior finishes are available to match your yacht's interior design. The modular, stackable, and linkable design allows flexible configurations for any space. Contact Mercer Yachting with your toy store dimensions for a tailored proposal.
Regulatory Sources
- MGN 681 (M) Amendment 1 — Fire safety and storage of small electric powered craft on yachts (MCA, 19 December 2025)