25.6V 50Ah Special Underwater Equipment Lithium Iron Phosphate Battery
Lithium iron phosphate batteries suitable for special underwater equipment
Product Number: 37DZ040-02
Nominal voltage: 25.6V
Nominal capacity: 50000 mAh
Battery size: 344*245*135mm (Max)
Charging temperature: 0 to 45℃
Discharge temperature: -20 to 60℃
Application field: Special equipment
Specifications of 25.6V 50Ah Special Underwater Battery
Cell Model: 26650 LiFePO4 (8S12P Configuration)
Rated Voltage & Capacity: 25.6V / 50Ah
Continuous / Peak Discharge: 50A / 100A
Weight & Dimensions: 30 kg / 344 * 245 * 135 mm
Casing Material: Rugged Sheet Metal
Internal Resistance: ≤ 100 mΩ
Project Number: 37DZ040-02
Cell model: 26650 / 3.2V / 3.2Ah
Battery specification: 26650 – 8S12P / 25.6V / 50Ah
Nominal voltage: 25.6V
Rated capacity: 50Ah
Charging voltage: 29.2V
Charging current: ≤ 15A
Discharge current: 50A
Instantaneous discharge current: 100A
Discharge cut-off voltage: 16V
Finished product internal resistance: ≤ 100 mΩ
Battery weight: 30 kg
Product dimensions: 344*245*135mm (Max)
Charging temperature: 0 to 45℃
Discharge temperature: -20 to 60 ℃
Storage temperature: -20 to 45 ℃
Temperature protection: 70℃ ± 5℃
Battery case: Sheet metal case
Lithium battery protection: short-circuit protection, overcharge protection, over-discharge protection, overcurrent protection, temperature protection, balancing, etc.
Application field: Special underwater equipment
Product features
Low power consumption;
The battery comes with built-in temperature protection.
The battery pack is safe and has a long cycle life.
The battery pack has a long cycle life, which is in line with the value concepts of low carbon, energy conservation and environmental protection.
High-Power Output with Exceptional Reliability
Special underwater equipment, such as heavy-duty ROV thrusters and deep-sea trenchers, demands massive surges of reliable power in the harshest environments. As a cornerstone of KRL’s marine energy solutions, this premium custom underwater battery pack is precision-engineered to deliver a stable continuous 50A discharge current, while effortlessly handling an instantaneous peak output of 100A. Fortified by KRL’s proprietary 30kg reinforced sheet metal housing, the system withstands crushing depths and extreme physical impacts, guaranteeing unparalleled structural integrity for your most critical deep-water projects.
Intelligent Battery Management System (BMS)
Replacing a failed battery in subsea environments is incredibly costly. To ensure zero downtime, KRL integrates an industrial-grade BMS into this 25.6V 50Ah LiFePO4 pack. It offers comprehensive protection against short circuits, overcharging, over-discharging, and overcurrent. More importantly, it features an advanced cell balancing function that maintains the optimal health of all 96 individual 26650 cells (8S12P), maximizing the battery’s lifespan under harsh conditions.
Powering the Most Demanding Marine Equipment
With its high energy density and ruggedized design, this heavy-duty lithium iron phosphate battery is the trusted power source for:
Heavy-Duty Autonomous Underwater Vehicles
Remotely Operated Vehicles and Thrusters
Oceanographic Survey and Seismic Equipment
Offshore Oil & Gas Inspection Tools
OEM & ODM Custom Subsea Solutions
As a direct manufacturer, KRL Power understands that off-the-shelf solutions rarely fit specialized underwater projects. We offer complete OEM/ODM customization. Whether you require specific IP68/IP69K potting processes, custom watertight marine connectors (such as SubConn or Seacon), altered sheet metal dimensions, or upgraded CAN bus communication, our engineering team will build the perfect power source for your subsea architecture.
Frequently Asked Questions (FAQ)
Can you integrate specific underwater connectors into the sheet metal casing?
Yes, we can custom-machine the sheet metal casing to perfectly fit and seal your specified marine-grade connectors, ensuring absolute watertight integrity for deep-sea deployment.
How does the 30kg sheet metal casing handle saltwater corrosion?
The standard sheet metal casing is treated with anti-corrosive industrial coatings. For prolonged direct exposure to saltwater, we can upgrade the casing material to Marine-Grade Stainless Steel (316L) or anodized aluminum upon request.
Do you provide factory testing reports for the 100A peak discharge capability?
Absolutely. Every custom marine battery pack undergoes rigorous automated testing before shipment. We provide comprehensive QA reports detailing the discharge curves, internal resistance, and BMS protection thresholds.
