Custom Marine Battery Systems
Leadmax Battery lithium batteries provide crucial assistance for the green development of this sector through safe and efficient electrification solutions. In addition to silent operation and the removal of polluting emissions, the proprietary Leadmax Battery Balancing System (BMS) electronic management system provides numerous benefits, delivering a high range and long service life, by constantly and comprehensively monitoring the battery pack.
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Custom Lithium Marine Battery Application Scenarios
Diesel Engine Starting & Dual-Purpose Lithium Batteries
Leadmax Battery provides Diesel Engine Starting & Dual-Purpose LiFePO4Batteries with strong cranking power, deep cycle performance, and long service life
Marine House Power Lithium Batteries
Leadmax Battery supplies Marine House Power Lithium Batteries with safe LiFePO4 cells, long cycle life, and reliable power—factory-direct and globally certified.
Marine Electric Trolling Motor Lithium Batteries
Leadmax Battery offers Marine Electric Trolling Motor Lithium Batteries with long runtime, lightweight design, and safe LiFePO4 power—factory-direct and certified.
Custom Stainless Steel Lithium Marine Batteries Packs for Marine, Yacht, Boat
Leadmax Battery Marine Lithium Batteries are designed for use in all Marine Applications from Commercial Vessels, Yachts, and Cruise Ships to Fishing Boats, Electric Propulsion, and Trolling Motor marine applications.
- Free Custom Design
- 24/7 Engineer Support Services
- Certification: Compliance with MSDS, UN38.3, CE, CB, IEC 62619, UL
Specific mechanical design
with a stainless steel structure and watertight connectors
Electrical engineering design
analysis of the safety requirements of the marine sector
Product certifications
specific to the marine sector, such as DNV (on request)
Leadmax Lithium Marine Battery
Engineered in China with premium LiFePO4 cells and advanced BMS, Leadmax marine batteries are lightweight, safe, and long-lasting. Certified to CE, UL, and UN38.3, they deliver reliable power for boats, yachts, trolling motors, and marine house systems-factory-direct and customizable.
| Voltage Range | 51.2 |
|---|---|
| Battery System Whole Capacity | 100Ah |
| Battery System Configuration | 2P16S, Consists of 2 battery box in parallel |
| Rated voltage of single battery pack (V) | 51.2 |
| Rated capacity of single battery pack (Ah) | 50 |
| Configuration of single battery pack | 1P16S |
| Battery system Working Temperature | Discharge -20~55℃，Charge -0~55℃ |
| Battery system Surrounding environment relative humidity | 5%~95% |
| Battery system Max. charging current | 50A |
| Battery system standard discharging current | 100A |
| Battery system instant discharging current (Max.) | 300A |
| Cooling system | Air Cool |
| IP grade | IP67 |
| Battery Case Material | aluminium |
| Weight of each battery pack | 25 Kgs |
| Battery system total weight | 50 Kgs with aluminium case |
| Voltage Range | 51.2 |
|---|---|
| Battery System Whole Energy (KWH) | 10.24kWh |
| Battery System Whole Capacity(Ah) | 200Ah |
| Battery system Working Temperature | Discharge-20~55℃，Charge |
| Battery system Surrounding environment relative humidity | 5%~95% |
| Battery system Max.charging current | 100A |
| Battery system standard discharging current | 200A |
| Battery system instant discharging current(Max.) | 500A |
| Cooling system | Air Cool |
| IP Grade | IP67 |
| Voltage Range | 51.2 |
|---|---|
| Battery System Whole Energy (KWH) | 15.36kWh |
| Battery System Whole Capacity(Ah) | 300Ah |
| Battery system Working Temperature | Discharge -20~55℃，Charge -0~55℃ |
| Battery system Surrounding environment relative humidity | 5%~95% |
| Battery system Max. charging current | 100A |
| Battery system standard discharging current | 200A |
| Battery system instant discharging current (Max.) | 500A |
| Cooling system | Air Cool |
| IP grade | IP67 |
| Voltage Range | 51.2 |
|---|---|
| Battery System Whole Energy (KWH) | 20.48kWh |
| Battery System Whole Capacity(Ah) | 400Ah |
| Battery system Working Temperature | Discharge -20~55℃，Charge -0~55℃ |
| Battery system Surrounding environment relative humidity | 5%~95% |
| Battery system Max. charging current | 100A |
| Battery system standard discharging current | 200A |
| Battery system instant discharging current (Max.) | 500A |
| Cooling system | Air Cool |
| IP grade | IP67 |
| Battery dimension | 893*500*320 mm |
| Battery weight | 149Kgs with aluminium case |
| Voltage | 72V |
|---|---|
| Battery system whole capacity（Ah） | 200Ah |
| Battery system working temperature | Discharge -20~45℃，charge 0~45℃ |
| Battery surrounding environment relative humidity | 10%~85% |
| Battery storage temperature | -20～45℃ |
| Battery standard charging current(23±2℃) | 70A |
| Battery Max charging current(23±2℃) | 200A |
| Battery standard discharging current(23±2℃) | 200A |
| Battery continuous discharging current(23±2℃) | 250A |
| Battery discharge peak current(5s)(23±2℃) | 350A |
| Battery system insulation resistance testing value | ≥20mΩ |
| Insulation Resistance Testing | ≥20MΩ |
| Waterproof grade of battery case | IP67 |
| Cooling system | Air cool |
| Voltage | 73.6V |
|---|---|
| Battery system whole capacity（Ah） | 230Ah |
| Battery system working temperature | Discharge -20~45℃，charge 0~45℃ |
| Battery surrounding environment relative humidity | 10%~85% |
| Battery storage temperature | -20～45℃ |
| Battery standard charging current(23±2℃) | 50A |
| Battery Max charging current(23±2℃) | 230A |
| Battery standard discharging current(23±2℃) | 115A |
| Battery continuous discharging current(23±2℃) | 230A |
| Battery discharge peak current(5s)(23±2℃) | 460A |
| Battery system insulation resistance testing value | ≥20mΩ |
| Insulation Resistance Testing | ≥20MΩ |
| Waterproof grade of battery case | IP67 |
| Cooling system | Air cool |
| Nominal voltage | 73.6V |
|---|---|
| Nominal Capacity | 400AH |
| Total Energy | 29.44KWH |
| Charging cut off voltage | 83.95V |
| Discharge cut off voltage | 57.5V |
| Continuous Charge current | 200A |
| Maximum Continuous Discharging Current | 400A |
| Maximum Discharging Current | 800A |
| Weight | 220Kg |
| Case Material | Aluminium |
| IP Grade | IP67 |
| Voltage | 96V |
|---|---|
| Battery System Whole Capacity(Ah) | 200Ah |
| Battery system Working Temperature | Discharge -20~55℃，Charge -0~55℃ |
| Battery system Surrounding environment relative humidity | 5%~95% |
| Battery system Max. charging current | 100A |
| Battery system Max. Instance discharging current（10s） | 600A |
| Battery system standard discharging current | 200A |
| Battery system instant discharging current (Max.)（30s） | 300A |
| Insulation Resistance Testing( Ω） (Main positive&Main Negative VS Battery case | ≥20MΩ |
| Cooling system | Air Cool |
| IP grade | IP67 |
| Battery case material | Aluminium alloy with corrosion-resistant coating |
| Battery weight | 149Kgs |
The Process Flow & Duration Estimation
From Design to Sale, Are Leadmax Battery Solutions SAFE?
ISO9001 is the most fundamental guarantee
Safety in the design phase: Leadmax Battery only uses grade A quality lithium battery cells, mostly designed for EV systems. The engineering team has more than 12 years of experience in the field of lithium-ion batteries. As part of the design phase, all safety points will be fully taken into consideration, such as strengthening the battery’s internal structure, choosing a better BMS, and determining the appropriate IP grade etc.
Safety in the delivery phase: All of Leadmax Battery’s solutions are compliant with UN38.3. These lithium batteries can be shipped worldwide. Moreover, Bonnen Battery can also provide global delivery services at a reasonable cost. Because we have cooperated with a lithium battery forwarder together.
Cooperation with Leading Lithium Battery Cell Manufacturers
Leadmax had built a reliable distribution channel to source lithium battery cells from Tier 1 battery cell manufacturers in the world. Each project uses grade A cells from CATL, GOTION, EVE, Ganfeng, FARASIS, LISHENG, etc.
Leadmax battery cells can always able to be tracked, they have been properly aged, and they are grouped before being used in your project. We booked the cell early each quarter to guarantee customer deliveries and minimize any sudden cost impact from the market.
How Can We Help Your Business?
Efficiently reviewing your needs to provide professional technical solutions! We listen, care, and guarantee a response through email or phone within 6 hours.
Standard products are produced within 15-20 days and shipped immediately via sea or air. Customized products are produced within 30-35 days. Sea shipping usually takes 28-35 days.
An extensive product line, fully traceable production processes, an average warranty of over 10 years, stable cell resources from CATL, BYD, Gotion, and EVE, and support for production process visualization.
For orders below $10,000 USD, we accept 100% prepayment via T/T. For larger orders, we require a 50% prepayment. Once production is complete, we provide videos and images or conduct live video inspections, and the balance is paid before shipping.
We use cells from leading domestic brands like CATL, BYD, EVE, and Gotion. If you have a specific cell brand in mind, we can accommodate your request.
If you encounter a problem, please contact us via email at [email protected] to request a warranty. Describe the issue you’re facing, and we’ll reply within 12 hours and assign a dedicated customer service representative to assist you. Further responses will usually come within minutes for quick communication.
Typically, the warranty period is determined through rigorous testing. However, custom products are designed and assembled to client specifications, making it challenging to conduct comprehensive short-term testing. In most cases, we provide a 5-10 year warranty, depending on the specific application scenario, which will be clarified during communication
Yes, to meet customs and various national requirements, our standard products are certified with CE, MSDS, and UN38.3. Our cells generally have RoHS, UL1973, and IEC62619 certifications, with digital certificates available.