Lithium Marine Batteries for Small Craft & Utility Boats
Compact, sealed lithium power for boat builders, marine equipment suppliers and coastal service fleets. Robur combines source-factory manufacturing with custom battery development for navigation, onboard electronics, trolling and auxiliary loads.
More room on board.
SERIES
Shown: 36V 100Ah configuration
Built around the way your vessel works.
Weight, installation space and exposure to salt, humidity and vibration shape a marine battery project. Robur’s compact, high-energy-density lithium systems free valuable onboard space while delivering stable output, long cycle life and quick recharging. Sealed and maintenance-free, they provide safe power for cabin and deck installations.
Boat builders
Compact, sealed batteries for limited-space installations. Define the battery compartment, mounting space and onboard loads before selecting a configuration.
SPACE & INTEGRATIONMarine equipment suppliers
Reliable energy for navigation, lighting and onboard tools. Match system voltage, load demand and charging equipment to the battery specification.
LOADS & COMPATIBILITYCoastal service fleets
Long-lasting energy with zero corrosion or acid leakage. Plan charging around operating hours, turnaround time and the available shore-power connection.
DUTY & TURNAROUNDWhy switch from lead-acid to lithium?
Less weight, faster recharging and a longer service life help small boats and marine equipment work efficiently in harsh conditions.
Weight & space
Every kilogram matters on the water. Robur lithium batteries reduce weight and release valuable onboard space.
Cycle life
Salt air and vibration shorten lead-acid life. Sealed, corrosion-resistant construction helps Robur lithium maintain stable performance.
Charging time
Faster charging allows longer trips and less generator use.
Maintenance
No acid spills, no corrosion — safe, clean power for marine tools and small boats.
Total cost of ownership
Reduced fuel usage, zero maintenance and extended lifespan improve the economics of marine power.
For small-boat builders, marine tool suppliers and coastal service fleets, Robur lithium systems deliver clean, reliable power with minimal maintenance and maximum safety.
Compare the proposed battery and lead-acid baseline under the same duty cycle. Confirm model-specific weight, cycle-life conditions and charging requirements with our team.
Find a starting point for your marine battery project.
Explore 12V, 24V, 36V and 48V lithium battery configurations. Select a configuration to include in your project brief, then confirm the enclosure, dimensions, discharge current and charger requirements with our team.
23 configurations across four voltage series.
12V lithium marine battery configurations
12V 20Ah
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12V 30Ah
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12V 50Ah
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12V 80Ah
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12V 100Ah
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12V 150Ah
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12V 200Ah
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12V 300Ah
Discuss this configuration24V lithium marine battery configurations
24V 50Ah
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24V 80Ah
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24V 100Ah
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24V 150Ah
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24V 200Ah
Discuss this configuration36V lithium marine battery configurations
36V 50Ah
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36V 80Ah
Discuss this configuration36V 100Ah
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36V 120Ah
Discuss this configuration48V lithium marine battery configurations
48V 50Ah
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48V 80Ah
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48V 100Ah
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48V 120Ah
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48V 150Ah
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48V 200Ah
Discuss this configurationVoltage labels identify the product series. Final rated voltage, chemistry and installation compatibility are confirmed for the proposed pack.
Need a different configuration? Tell us your voltage, capacity and available space.
Customize your batteryCustom marine lithium battery solutions.
Small craft, service boats and onboard equipment need lightweight, durable power in saltwater environments. Robur’s corrosion-resistant lithium systems provide stable energy, faster charging and long service life without corrosion or gas emissions. Their sealed design keeps operation clean, quiet and maintenance-free.
One battery.
A complete set of requirements.
& onboard toolsLOAD PROFILE
installation spaceMECHANICAL FIT
& vibrationENVIRONMENT
& DC chargingCHARGING PLAN
Compact, maintenance-free power designed to perform safely in every marine condition.
The configuration catalogue also includes 36V products; the custom-system range above follows the stated 12V / 24V / 48V offering. Ask our team about your specific 36V project.
Safety first. See the work behind the battery.
Explore Robur’s battery test videos and manufacturing imagery as part of your supplier evaluation. For your marine project, request the specifications and test documentation for the proposed battery, enclosure and operating conditions.
These demonstrations show the source-site test material; they do not replace model-specific test reports or installation approval.
Manufacturing premium marine lithium batteries to the highest industry standards.
Manufacturing and certification images from Robur. Ask for current documents and the model coverage applicable to your project.
From your vessel requirements to production.
A clear engineering handover keeps the battery, onboard equipment and installation requirements connected throughout development.
Define requirements
Your inputTell us the application, voltage, capacity, dimensions, operating environment and any special needs. Include your onboard equipment and charging arrangements.
Application • Electrical needs • Installation space
Engineering evaluation
Engineering reviewOur engineering team reviews your requirements and proposes a custom battery pack solution, including BMS integration and safety considerations.
Pack configuration • BMS • Safety considerations
Sample development
Sample referenceBring the agreed application requirements into sample development: voltage, capacity, dimensions, operating environment and special needs remain the reference for the sample.
Agreed voltage • Capacity • Dimensions • Environment
Customer testing & feedback
Your validationTest performance and compatibility in real operating conditions. Our team works with you to optimize the design details where adjustments are needed.
Onboard performance • Compatibility • Feedback
Mass production & delivery
Approved productionAfter sample approval, we move to full-scale production. Each battery pack passes rigorous quality inspections before secure packaging and on-time delivery.
Sample approval • Quality inspection • Delivery
Lighter power built for the water.
Corrosion-resistant, sealed lithium systems save space and weight on small boats and marine tools while delivering clean, reliable energy.
Lower ownership cost
Long cycle life and zero maintenance in harsh environments.
More usable capacity
High energy density for electronics, trolling and auxiliaries.
Marine-ready safety
Sealed IP-grade enclosures and BMS protection.
Efficient turnaround
Faster charging reduces generator or shore-power time.
Tell us what needs power on board.
Start with the details you know. Share your vessel or equipment type, loads, available space and charging plan so our team can review a suitable configuration.
For small craft and utility vessels. If your requirement includes engine starting or a new propulsion system, identify it separately for engineering review.
Prepare your brief, then open an email draft or copy it to contact our team.