Power That Lasts
Our compact LiFePO4 battery packs are specially engineered for marine applications, offering water-resistant, robust, and lightweight energy storage solutions. Our compact LiFePo4 battery packs are specially engineered for marine applications, offering water-resistant, robust, and lightweight energy storage solutions.
Energy You Can Trust
Our LiFePO4 batteries are built to withstand extreme maritime conditions, ensuring reliable performance in any environment. Designed for long-term use, they endure harsh weather, saltwater, and more.
LiFePO4 batteries offer enhanced thermal stability, longer cycle life, and greater safety compared to typical NMC batteries, making them the ideal choice for demanding marine environments where reliability and safety are critical.
Equipped with CAN-Bus communication, our batteries interact seamlessly with other system components. If batteries are running low, they can send signals to other systems like generators, ensuring continuous power.
Our battery modules are compact and flexible in configuration, allowing for optimal placement throughout the vessel. This maximizes available space and supports efficient system layout, ideal for both retrofits and new builds.
Our batteries come with an integrated Battery Management System (BMS) that constantly monitors the health of each cell, ensuring optimal performance, preventing overcharging, and extending the battery's lifespan.
Our DNV and ES-TRIN certified LiFePo4 batteries meet the highest standards for the maritime industry. Ideal for professional vessels, they offer peace of mind with their proven reliability and safety in commercial applications.
Compact & Integrated
Discover how STOK Electric’s innovative propulsion systems are transforming recreational boating by providing eco-friendly, quiet, and reliable power for various types of vessels.
Efficiency Meets Innovation
| Specs | Super B Nomada 105 | MG LFP 230 | MG RS 230 | MG LFP 304 SLP | Super B Nomia 340 |
|---|---|---|---|---|---|
|
Chemistry |
LiFePO4 |
LiFePO4 |
LiFePO4 |
LiFePO4 |
LiFePO4 |
|
Rated Voltage |
12,8V |
25,6V |
51,2V |
25,6V |
12,8V |
|
Capacity |
105Ah |
230Ah |
230Ah |
304Ah |
340Ah |
|
Energy |
1,344kWh |
5,888kWh |
11,776kWh |
7,782kWh |
4,352kWh |
|
Serial Connection |
Up to 56 modules |
Up to 16 modules |
Up to 16 modules |
Up to 22 modules |
Up to 56 modules |
|
Battery Life
|
>3500 100% DOD |
>3500 80% DOD |
>4000 80% DOD |
>4000 80% DOD |
>4000 100% DOD |
|
Weight |
10 kg |
41 kg |
95 kg |
54 kg |
33 kg |
|
Dimensions LxWxH |
437 x 90 x 175 mm |
517 x 193 x 294 mm |
653 x 389 x 288 mm |
685 x 193 x 294 mm |
417 x 227 x 314 mm |
|
Continuous Discharging |
1C |
1C |
1C |
1C |
1C |
|
Maximum Discharging |
3C |
1,5C |
1,5C |
1,5C |
2,5C |
|
Heating |
Optional |
No |
No |
No |
No |
|
Approvals |
DNV + ES-TRIN |
ES-TRIN |
Lloyd + ES-TRIN |
ES-TRIN |
ES-TRIN |
Complete Solutions
Discover STOK Electric’s high-performance electric inboard motors for yachts, ferries, and workboats, quiet, efficient, low-maintenance, and ideal for sustainable marine propulsion.
Explore our products to find the perfect electric solution for your boat, or contact us to discover how STOK Electric can power your journey forward.
Understanding STOK Systems
LiFePO4 (Lithium Iron Phosphate) batteries offer superior thermal stability, a longer cycle life, and increased safety compared to NMC batteries typically used in automotive EVs. For marine environments where safety and longevity are essential, LiFePO4 is the best choice.
Absolutely. Our battery systems can be connected in series up to 800V, making them compatible with high-voltage electric propulsion systems for both commercial and recreational boats.
Yes, we offer flexibility. If you have specific battery preferences or an existing supplier, we can integrate third-party batteries into the system — as long as they meet safety and performance standards.
Definitely. We tailor the battery bank capacity to your sailing profile — whether you’re making short harbour trips or full-day coastal journeys. This ensures you carry just the right amount of energy without unnecessary weight or cost.
Yes. Our batteries are ES-TRIN, DNV, and Lloyd’s Register certified — fully compliant with international maritime safety standards. This makes them ideal for commercial and professional vessels.
Yes, we offer heated battery options to ensure reliable performance and safe charging in freezing temperatures. Ideal for northern sailing areas and year-round operation.
Thanks to the high efficiency and thermal stability of our LiFePO4 cells, our battery systems don’t require complex water cooling systems. Passive or air cooling is sufficient, simplifying the installation and reducing maintenance.
To maximise lifespan, keep your battery between 20% and 100% charge. Avoid prolonged storage at 0% or 100%. Our integrated Battery Management System helps manage this automatically.
When properly used, our marine-grade LiFePO4 batteries can last 10 years or more. Their long cycle life and robust construction make them highly suited for electric boat propulsion systems.