18650 10Ah 25.2V Low Temperature Lithium ion Battery Pack

Product Number:
35AQ211-02
Nominal voltage:
25.2V
Nominal capacity:
10Ah
Battery Configuration:
18650-7S4P
Dimension:
154 × 100 × 72 mm (Max)
Application:
infrared device
-40°C low temperature discharge, 232 communication interface, SOC monitoring and protection system
Product Overview

This battery is designed for infrared telescopes and optical detection equipment used in night vision observation and field surveillance scenarios. It provides stable output with low-temperature adaptability and compact high-energy design, ensuring reliable performance in continuous outdoor operation.

Electrical Specifications

Attribute Parameter
Product Number 35AQ211-02
Cell Model 18650 / 3.6V / 2600mAh
Battery Configuration 18650-7S4P
Nominal Voltage 25.2V
Nominal Capacity 10Ah
Rated Energy 252Wh
Charging Voltage 29.4V
Discharge Cut-off Voltage 17.5V
Standard Charging Current ≤5A
Standard Discharge Current ≤10A
Max Continuous Discharge Current ≤10A
Internal Resistance ≤120mΩ

Mechanical & Environmental

Attribute Parameter
Charging Temperature 0 ~ 45℃
Discharge Temperature -40 ~ 60℃
Storage Temperature -20 ~ 35℃
Dimensions 154 × 100 × 72 mm (Max)
Weight 1.4kg
Battery Case Blue PVC heat shrink film
Protection System Short circuit, Overcharge, Overdischarge, Overtemperature, Overcurrent, ESD protection

Application Background

This battery solution is designed for infrared devices such as thermal imaging scopes and optical observation equipment, widely used in night vision, target detection, and long-range field surveillance under low-temperature environments.

The system must maintain stable power supply in extreme cold and harsh outdoor conditions to ensure continuous imaging and sensing performance, with high requirements for low-temperature capability, power stability, and reliability.

Project Challenges

  • Stable operation under extreme low temperatures down to -40°C
  • High voltage stability required for infrared imaging systems
  • Long-duration field observation requiring high reliability
  • Limited enclosure space (154×100×72mm) requiring compact high-energy design

Customized Battery Solution

  • 7S4P 25.2V high-energy platform (10Ah / 252Wh) for continuous power supply of infrared systems
  • Low-temperature optimized cell design ensuring stable discharge at -40°C
  • Low internal resistance structure (≤120mΩ) for improved transient load response
  • Comprehensive protection system (overcharge, overdischarge, overcurrent, overtemperature, short circuit, ESD) ensuring safe operation in harsh environments

Application Results

  • Improved power stability of infrared devices in extreme cold environments
  • Enhanced low-temperature startup and continuous discharge performance
  • Increased system reliability under complex field conditions
  • Ensured continuous imaging and stable performance for night vision and detection tasks

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.