48V 280AH Marine Batteries

Product Overview

The 48V 280Ah marine battery is engineered for demanding marine environments where stable output and deep cycling capability are critical. Built on advanced LiFePO4 marine battery technology, it provides 14.3kWh of usable energy with over 6000 cycles at 80% DOD.

This means that in practice, vessel operators experience reduced downtime, lower lifetime costs, and consistent propulsion performance.

Key highlights:

• 51.2V nominal voltage platform

• 280Ah high-capacity design

• 14336Wh total energy output

• Industrial-grade metal or ABS housing

• Smart BMS with CAN / RS485 / Modbus

For complete system integration guidance, explore our full range of 🔗 marine lithium battery solutions.

Key Features & Benefits

Ultra-Long Cycle Life

With >6000 cycles, this deep cycle marine battery significantly outperforms conventional marine batteries. Over a 10-year design life, total cost of ownership is dramatically reduced.

High-Power Discharge Capability

Supports:

• 200A continuous discharge

• 150A continuous charge

• Stable output for high voltage marine battery systems

For example, electric propulsion systems demand consistent torque delivery. Voltage drops common in lead-acid systems are eliminated here.

 Smart BMS Protection

Integrated smart BMS provides:

• Overcharge / over-discharge protection

• Short circuit protection

• Active balancing

• CAN bus integration

• Modbus communication

This makes it ideal for marine energy storage system integration.

Marine-Grade IP65 Protection

Salt spray, vibration, and humidity are common marine challenges. IP65-rated casing ensures reliability in harsh offshore conditions.

Flexible Expansion

Supports:

• Max 2 in series

• Max 4 in parallel

This allows scalable marine energy storage system architecture for larger yachts and hybrid vessels.

Technical Specifications

The battery complies with global lithium marine battery standards and follows best practices outlined by authorities like the (external link) https://www.iso.org for marine electrical safety standards.

Applications

The 48V 280Ah marine battery is ideal for:

• Electric boats

• Luxury yachts

• Marine propulsion systems

• Trolling motor systems

• Offshore marine energy storage system installations

• Onboard high-power electronics

In practice, electric boat manufacturers benefit from stable voltage output, reducing controller stress and improving propulsion efficiency.

Comparison / Advantages

48V 280Ah Marine Battery vs Traditional Marine Batteries

When comparing a 48V marine battery lithium solution to traditional AGM or lead-acid:

This means that marine lithium battery systems offer higher usable energy and faster charging.

For vessels upgrading from legacy systems, our 🔗 deep cycle marine battery solutions provide direct integration pathways.

Certifications & Quality

Our manufacturing follows:

• ISO-compliant production

• UN38.3 transport certification

• CE / RoHS compliance

• Marine vibration testing

Each 48V boat battery undergoes rigorous performance validation before shipment.

OEM & Customization

We provide full OEM & ODM services:

• Branding & logo customization

• Firmware modification

• BMS communication protocol adjustment

• CAN bus integration

• LCD display upgrades

• Bluetooth / APP monitoring

• Self-heating module

For electric boat manufacturers, customized battery architecture ensures seamless integration with propulsion controllers.

CTA

Ready to power your next-generation vessel with a 48V 280Ah marine battery?
Contact our engineering team today for system integration consultation and OEM pricing.