26650 25.6V 21Ah LiFePO4 Battery Pack

Product Number:
39DZ003-02
Nominal voltage:
25.6V
Nominal capacity:
21Ah
Battery Configuration:
26650-8S6P
Dimension:
400×160×75mm
Application:
electric power inspection robot
Metal housing, RS485 communication, SOC management
Product Overview
This LiFePO4 battery is designed for electric power inspection robots, used in outdoor patrol and intelligent inspection scenarios. With high-rate stable output, RS485 communication, and strong protection features, it ensures reliable long-duration operation under complex working conditions.

Electrical Specifications

Attribute Parameter
Product Number 39DZ003-02
Cell Model 26650/3.2V/3.5Ah
Battery Configuration 26650-8S6P
Nominal Voltage 25.6V
Nominal Capacity 21Ah
Rated Energy 537.6Wh
Charging Voltage 29.2V
Discharge Cut-off Voltage 16V
Standard Charging Current ≤10A
Standard Discharge Current 40A
Max Continuous Discharge Current 40A
Internal Resistance ≤150mΩ

Mechanical & Environmental

Attribute Parameter
Charging Temperature 0~45℃
Discharge Temperature -20~60℃
Storage Temperature -20~45℃
Dimensions 400×160×75mm
Weight 7kg
Battery Case Metal Plate Housing
Output Type High Power Output
Communication Protocol RS485
Protection System Short circuit protection, overcharge protection, over-discharge protection, overcurrent protection, temperature protection, SOC management

Application Background

This battery solution is specially designed for electric power inspection robots, suitable for power facility inspection, outdoor autonomous patrol, and intelligent maintenance scenarios.
The robot operates in complex outdoor environments for long durations with high-load movement and communication tasks, requiring strong endurance, high pulse power output, and system stability.

Project Challenges

Inspection tasks require continuous operation for 8–12 hours
40A continuous discharge and 60A peak discharge demand high power performance
Harsh outdoor environments require strong temperature adaptability and reliability
Real-time SOC monitoring and communication functions are required for system management

Customized Battery Solution

High-rate power platform: 25.6V/21Ah LiFePO4 configuration for high-load robotic applications
Smart communication system: integrated RS485 communication and SOC management for real-time monitoring
Multiple protection system: overcharge, over-discharge, overcurrent, short circuit, and temperature protection
Reinforced structure design: metal housing for improved impact resistance and outdoor durability

Application Results

Supports continuous robot operation for 8–12 hours or longer
Improves high-load output stability by ~20%+, ensuring reliable performance in complex conditions
SOC real-time monitoring enhances operational efficiency
Stable cycle life reduces maintenance frequency and overall operating cost

We support flexible customization based on your project requirements, including:

  • Voltage range: 3.2V – 72V
  • Capacity range: 100mAh – 100Ah
  • Electrical performance design: Charge/discharge parameters, C-rate, internal resistance, temperature performance
  • Mechanical design: Appearance, dimensions, housing material, and integrated structural engineering
  • BMS design: Battery protection, cell balancing, and communication protocols (SMBus / I2C / UART)
Get a Custom Battery Solution
Tell us about your project needs. Our engineers will provide a tailored battery solution and quotation within 24 hours.