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26650 25.6V 50Ah Li-ion Battery for Special Underwater Vehicle with RS485

Battery for Special Underwater Vehicle delivers 25.6V 50Ah power, RS485 communication, and -20~60℃ operation—ideal for underwater robots, submersible vehicles, and marine exploration equipment.

  • Nominal Voltage:25.6V
  • Rated Capacity:50000mAh
  • Dimension:344*245*135mm
  • Charge Voltage:29.2V
  • Charge Current:≤15A
  • Discharge Current:50A
  • Discharge Cut-off Voltage:16V
  • Weight:30000g
  • Operating Temperature:-20~60℃
  • Application:Special underwater vehicle

26650 25.6V 50Ah Li-ion Battery for Special Underwater Vehicle with RS485

Product Introduction

Engineered as a Battery for Special Underwater Vehicle, this 26650 lithium-ion solution is purpose-built for submersible operations. Featuring 25.6V nominal voltage, 50Ah capacity, and integrated RS485 communication, this Special Underwater Vehicle Li-ion Battery combines 26650 cell durability with underwater-ready design. Unlike standard lithium batteries, it withstands -20~60℃ temperature extremes, supports 50A discharge for high-power underwater systems, and ensures real-time data sync via RS485—making it the reliable power source for underwater robots, submersible vehicles, and marine exploration gear.

Technical Specifications

Table: Battery for Special Underwater Vehicle Core Parameters

Parameter Details
Cell Type 26650 Lithium-ion
Nominal Voltage 25.6V
Rated Capacity 50Ah
Charge Voltage 29.2V
Charge Current ≤15A
Discharge Current 50A
Discharge Cut-off Voltage 16V
Weight 30Kg
Dimensions (L×W×H) 344mm×245mm×135mm
Operating Temperature -20~60℃
Communication RS485 (For Underwater Fleet Monitoring)
Application Underwater Robots, Submersible Vehicles, Marine Exploration Equipment

Core Advantages of Battery for Special Underwater Vehicle

1. Underwater-Engineered Sealing & Durability

“The Battery for Special Underwater Vehicle features IP68-rated sealing and pressure-resistant casing:
  • Withstands underwater pressure up to 50m (tested), ensuring no leakage or short-circuits during submersible operations.
  • Corrosion-resistant materials protect against saltwater and marine debris, ideal for long-term underwater deployment.”

2. RS485-Driven Smart Underwater Fleet Management

“Integrated RS485 communication enables:
  • Real-time transmission of battery SOC, temperature, and discharge data to underwater vehicle control systems.
  • Customizable alerts for overcurrent, low voltage, or overheating—critical for preventing mission failure in deep-water environments.”

3. Wide Temperature & High Discharge Performance

“Designed for extreme marine climates:
  • -20~60℃ Operation Range: Powers vehicles in icy arctic submersions (-20℃) and tropical marine exploration (60℃), with no capacity loss.
  • 50A Continuous Discharge: Supports high-power thrusters, sonar systems, and underwater lighting in submersible vehicles.”

Application Scenarios

1. Underwater Robots for Marine Research

Scientific Exploration: Powers ROVs (Remotely Operated Vehicles) conducting seabed mapping, marine life observation, and wreck inspection. The Battery for Special Underwater Vehicle’s 50Ah capacity and RS485 enable 8+ hours of continuous research missions with real-time battery health tracking.”

2. Submersible Vehicles for Industrial Maintenance

Underwater Infrastructure Inspection: Supplies energy for submersible vehicles inspecting pipelines, dams, and offshore structures. Its 50A discharge handles simultaneous operation of inspection cameras, robotic arms, and propulsion systems—ensuring efficient maintenance workflows.”

3. Military & Defense Submersible Systems

Tactical Underwater Operations: Powers specialized submersible vehicles for surveillance, mine detection, and covert missions. The battery’s wide temperature tolerance and rugged design ensure reliability in hostile marine environments.”

FAQ

Q1: What applications are special robot lithium batteries designed for?

A: Special robot lithium batteries are designed for robotic systems that operate outside standard indoor service conditions, including patrol robots, firefighting robots, underwater robots or underwater equipment, inspection robots, and other specialized mobile platforms. Battery selection should be based on the robot’s voltage, runtime, load profile, available installation space, communication needs, charging method, and operating environment.

A: Start with the required voltage, usable capacity, continuous and peak current, target runtime, installation dimensions, weight limit, charging requirements, communication interface, and environmental conditions. Special applications may also require additional consideration for moisture, dust, vibration, shock, temperature, sealing, or other project-specific factors. The battery should therefore be engineered around the complete mission profile rather than selected by capacity alone.

A: LiFePO4 and other lithium-ion chemistries can both be used in special robot applications. LiFePO4 is often selected when thermal stability and cycle life are priorities, while other lithium-ion chemistries may be considered when energy density, weight, or compact size are more important. The appropriate chemistry depends on the robot’s duty cycle, space, load, environment, and performance requirements.

A: Yes. FEBATT can develop custom lithium battery packs for special robot projects, including patrol, firefighting, underwater, inspection, and other specialized robots. Customization may include voltage, capacity, dimensions, housing, connector type, BMS settings, charge and discharge current, communication interface, and environmental protection requirements. Final specifications should be defined according to the robot platform and operating conditions.

A: Yes. FEBATT can develop custom lithium battery packs for special robot projects, including patrol, firefighting, underwater, inspection, and other specialized robots. Customization may include voltage, capacity, dimensions, housing, connector type, BMS settings, charge and discharge current, communication interface, and environmental protection requirements. Final specifications should be defined according to the robot platform and operating conditions.

A: Depending on the project, interfaces such as RS485 or CAN can be integrated for communication between the battery BMS and the robot controller. These interfaces can transmit information such as state of charge, voltage, current, temperature, and fault status. Published FEBATT special-robot examples include patrol and firefighting robot battery configurations using RS485 or CAN, but the required protocol and message format should be confirmed for each project.

A: Environmental requirements should be defined during battery development. Factors may include moisture exposure, dust, vibration, shock, immersion, operating temperature, and mechanical impact. Battery chemistry, enclosure design, sealing, connector selection, thermal design, and BMS protection can then be configured for the application. Environmental protection levels and temperature limits should always be confirmed for the specific battery model or project rather than assumed across the full product range.

A: Cycle life depends on battery chemistry, depth of discharge, charge and discharge rate, operating temperature, charging strategy, and the robot’s duty cycle. For example, one published FEBATT 22.4V 28Ah patrol robot battery is specified for 1,000+ cycles while retaining at least 80% capacity. This is a model-specific reference, not a universal rating for all special robot batteries.

A: Special robots may experience short-duration power peaks during movement, climbing, acceleration, pump operation, actuators, or other mission-specific loads. The battery must provide sufficient continuous current for normal operation and adequate peak current for transient loads without excessive voltage drop or unwanted protection shutdown. These requirements should be matched to the cell configuration, BMS, connectors, wiring, and thermal design.

A: Charging voltage, maximum charge current, available charging window, charger communication, and mission schedule should be defined before the battery is finalized. Published FEBATT configurations show why this is model-specific: a 22.4V 28Ah patrol robot battery lists a maximum charge current of 14A, while a 48V 100Ah firefighting robot battery lists up to 47A. These figures are product examples only; the correct charging strategy must be matched to the selected battery and robot system.

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