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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.

24V 400Ah Lithium Marine Battery Design

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.

24V 400Ah Lithium Marine Battery Cycles

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.

Waterproof 24V 400Ah Lithium Marine Battery

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.

Smart 24V 400Ah 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.

Climate Ready 24V 400Ah Lithium Marine Battery

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.

Safe 24V 400Ah Lithium Marine Battery Terminals

360° Safety: The "Sentinel" BMS

Safety isn’t an afterthought; it’s built into the hardware. Our Advanced Battery Management System protects against

Advanced Smart BMS Protection

The built-in Battery Management System provides comprehensive safety and performance control, including:
360 Safety The Sentinel BMS-Febatt

Core Advantages

Deep OEM & ODM Customization

As a direct manufacturer, we provide:
Enclosure and structural customization
Branding, labeling, and packaging design
Technical documentation and certification support
Complimentary design services for long-term partners
Febatt Power Battery Core Advantage

Certificate

Pre-integrated UN38.3, GPSR, CE, MSDS, ISO9001,and other certifications to shorten market access cycles

ISO9001
MSDS
UN38.3
A Two-Wheeler Charger
A Two-Wheeled Vehicle Fast-Charging Station — Utility Model Certificate
A Self-Diagnostic Photovoltaic Battery Swapping Cabinet and Method of Use
A Lithium Battery Fixing Device
A Height-Adjustable Fast-Charging Station for Two-Wheeled Vehicles
Vehicle-Mounted Power Lithium Battery and Its Charging and Discharging Method

Wholesale Process

01.

Inquiry Reception And Needs Analysis
2 Febatt Wholesale Process

02.

Technical Proposal And Quotation
3 Febatt Wholesale Process

03.

Sample Validation And Testing
4 Febatt Wholesale Process

04.

Contract Negotiation And Signing
5 Febatt Wholesale Process

05.

Deposit Payment And Production Scheduling
6 Febatt Wholesale Process

06.

Production Monitoring And Final Inspection
7 Febatt Wholesale Process

07.

Logistics Arrangement And Balance Payment
8 Febatt Wholesale Process

08.

After-Sales Service And Long- Term Partnership

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.

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.

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.

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.

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.

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.

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.

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.

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.

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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