
24V 400Ah Lithium Marine Battery
- Exceptional Lifespan: The 24V 400Ah lithium marine battery delivers 2500+ cycles, providing over 6 years of reliable service to lower your total cost of ownership.
- High Output Performance: Benefit from a robust 1500A starting current (≤5S) engineered directly into this marine battery, ensuring instant power delivery.
- Advanced Smart BMS: Each 24 volt 400Ah lithium marine battery features integrated Bluetooth monitoring and a low-battery one-touch start for effortless fleet diagnostics.
- All-Weather Reliability: Featuring low-temperature heating technology, this lithium marine battery operates safely in extreme temperatures ranging from -40°C to 65°C.
- Marine-Grade Build: Housed in a waterproof, anti-corrosive shell with rust-proof terminals, this lightweight 22.98kg 24V 400Ah lithium marine battery is built for the harshest oceans.
24V 400Ah Lithium Marine Battery Overview
The flagship 24V 400Ah lithium marine battery features a lightweight 22.98kg design without sacrificing energy density. It is the ultimate reliable power source to keep commercial marine fleets moving safely and efficiently.
2500+ Cycles for Long-Term Durability
Built for B2B longevity, this deep cycle power solution delivers over 2,500 charging cycles. Investing in a durable 24V 400Ah lithium marine battery ensures 6+ years of service, significantly reducing long-term replacement costs.
Waterproof & Anti-Corrosion Casing
Marine environments demand tough protection. Engineered with a premium waterproof shell, this lithium marine battery prevents saltwater intrusion, guaranteeing uncompromised durability during harsh ocean voyages.
Core Specifications of 24V 400Ah Lithium Marine Battery
| Parameter | Specification |
|---|---|
| Nominal Voltage | 24V |
| Nominal Capacity | 400Ah |
| Cycle Life | > 2500 cycles (Estimated lifespan > 6 years) |
| Starting Current | 1500A (≤ 5s) |
| Charge Current | ≤ 50A |
| Discharge Current | ≤ 100A |
| Operating Temperature | -40°C to 65°C |
| Casing Material | Anti-corrosion and Waterproof |
| Terminals | Safe, Rust-proof Electrodes |
| Smart Functions | Low-power one-key start, Low-temperature heating, Bluetooth monitoring |
| Application Scenarios | Multi-scenario: Widely suitable for various electric vehicles and marine vessels |
Smart Bluetooth & One-Touch Start
Modernize your fleet management with intelligent power. This system features built-in Bluetooth monitoring and a low-battery one-touch start, giving you real-time diagnostics and seamless control over your 24V lithium marine battery.
Extreme Climate Performance (-40°C to 65°C)
Equipped with advanced low-temperature heating, this unit easily outputs a massive 1500A starting current (≤5S) in freezing weather. You can confidently deploy this 24V 400Ah marine battery in any global climate.
Safe & Rust-Proof Terminals
Safety is paramount for commercial vessels. Equipped with strictly tested, rust-proof electrodes, this 24V 400Ah lithium marine battery guarantees secure, stable connections and eliminates the risk of terminal failure at sea.
360° Safety: The "Sentinel" BMS
Advanced Smart BMS Protection
- Over-current protection
- Over-discharge protection
- Low-power protection
- High & low temperature protection
- Overload protection
- Short-circuit protection
- Automatic disconnection protection
Core Advantages
Deep OEM & ODM Customization




Certificate
Pre-integrated UN38.3, GPSR, CE, MSDS, ISO9001,and other certifications to shorten market access cycles
Wholesale Process
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Quality Control
FAQ
Q1: Are lithium batteries suitable for marine use?
A: Yes. LiFePO4 batteries are well suited to marine house-power and deep-cycle applications because they provide stable performance, long cycle life, and strong thermal stability. Compared with some other lithium chemistries, LiFePO4 is less prone to overheating or thermal runaway. A reliable BMS, proper charging system, secure installation, and suitable enclosure protection are still essential for safe marine operation.
Q2: What battery types are commonly used in marine applications?
A: Common marine battery types include flooded lead-acid, AGM, gel, and lithium batteries. LiFePO4 batteries are increasingly used because they provide stable voltage, lower maintenance, high usable capacity, and longer cycle-life potential.
Q3: Can lithium marine batteries replace lead-acid marine batteries?
A: Yes. A lithium marine battery can replace many lead-acid batteries when the voltage, capacity, installation space, discharge current, cables, connectors, charger, alternator, and vessel electrical system are properly matched.
Q4: What are the main benefits of lithium marine batteries?
A: Lithium marine batteries offer lower weight, more usable energy, faster charging, stable voltage output, longer cycle-life potential, and less routine maintenance than conventional lead-acid batteries. These advantages can reduce downtime and long-term battery replacement costs.
Q5: How long does a lithium marine battery last?
A: A well-designed lithium marine battery may last 8–10 years or longer under suitable operating conditions. Actual service life depends on charging practices, temperature, depth of discharge, operating current, battery quality, and maintenance.
Q6: Do lithium marine batteries require a special charger?
A: A lithium marine battery should use a charger with charging parameters compatible with its LiFePO4 cells and BMS. An existing marine charger may be used only when its voltage settings and charging profile match the battery manufacturer’s requirements.
Q7: Are FEBATT lithium marine batteries suitable for trolling motors?
A: Yes. FEBATT lithium marine batteries can provide stable voltage and continuous power for trolling motors. The battery voltage, capacity, continuous discharge current, peak current, wiring, fuse, and charger must be matched to the trolling motor’s specifications.
Q8: Can lithium marine batteries be charged below 0°C?
A: Standard LiFePO4 batteries should not be charged below 0°C unless they include low-temperature charging protection or a suitable heating system. FEBATT can configure low-temperature cutoff and self-heating functions for marine projects operating in cold climates.
Q9: Can FEBATT customize lithium marine batteries for OEM or ODM projects?
A: Yes. FEBATT can customize lithium marine battery voltage, capacity, dimensions, discharge current, enclosure, connectors, cable direction, mounting points, communication protocols, BMS functions, labeling, and other specifications for OEM and ODM marine projects.
Q10: What information is required for a custom lithium marine battery quotation?
A: FEBATT normally requires the system voltage, capacity, continuous and peak current, installation dimensions, load type, charger or alternator specifications, communication requirements, operating temperature, order quantity, and destination market.
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