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25.6V 20Ah LiFePO4 Battery for Sonar Equipment

This 25.6V 20Ah low-temperature lithium iron phosphate (LiFePO4) battery is specifically designed for sonar equipment operating in extreme cold marine and polar environments. Utilizing high-performance low-temperature LiFePO4 cells and an optimized internal structure, the battery ensures stable discharge performance at temperatures as low as -40℃, maintaining reliable power output for underwater detection systems. The battery adopts a 8S configuration with a nominal voltage of 25.6V and a nominal capacity of 20Ah, delivering high energy density and long cycle life. Integrated intelligent BMS provides comprehensive protection functions, ensuring safe and stable operation in harsh offshore environments. With a robust and corrosion-resistant housing, this battery pack is suitable for long-duration underwater sonar detection, marine survey systems, unmanned surface vessels (USVs), and polar scientific research equipment.
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PKCELL
Features & Benefits

Product Detail

  • Ultra-Low Temperature Performance
    Supports stable discharge at -40℃, ensuring continuous operation in extreme cold marine environments.
  • High Safety LiFePO4 Chemistry
    Excellent thermal stability, no risk of thermal runaway, safer than ternary lithium batteries.
  • Long Cycle Life
    ≥2000 cycles @80% DOD, reducing maintenance and replacement costs.
  • Intelligent BMS Protection
    Overcharge, over-discharge, overcurrent, short-circuit, and temperature protection
  • Stable Output for Sonar Systems
    Low internal resistance ensures minimal voltage drop during pulse discharge
  • Corrosion-Resistant Structure
    Designed for humid, salt spray, and offshore applications

Tech Specs

  • Battery type
    18650
  • Configuration
    8S1P (LiFePO4)
  • Charging Voltage
    29.2V
  • Standard Charging Current
    ≤5A
  • Max Charging Current
    ≤10A
  • Continuous Discharge Current
    10A
  • Cycle Life
    ≥2000 cycles
  • Charging Temperature
    0℃～45℃
  • Discharging Temperature
    -40℃～60℃
  • Storage Temperature
    20℃～35℃

Pkcell - Custom
Battery Solution Expert

Pkcell, established in 1998, is a leading Chinese batteryl manufacturer specializing in reliable and innovative power solutions. With an advanced 28,000 nf facility and a team of 50+ dedicated R&D experts,We have exported high-quality batteries to customers in over 100+ countries. Our custom battery solution widely used in medical device,cusumer electronics and industrial machinery.

  • 18
    +
    Years Experience
  • 28000
    ㎡
    Facility
  • 50
    +
    Delicated R&D Experts
  • 100
    +
    100+ Exported Countries
About Pkcell