25.2V 20Ah Low Temperature Charge/Discharge LiFePO4 Battery
Product Number:
04EQ130-01
Nominal voltage:
12.8V
Nominal capacity:
20Ah
Battery Configuration:
184F20C-4S1P
Dimension:
350×130×70 mm
Application:
Air Purity Sensor
-20℃ Charge / -40℃ Discharge, RS485 Communication, Shock Resistant Metal Case
Product Overview
Electrical Specifications
| Attribute | Parameter |
| Product Number | 04EQ130-01 |
| Cell Model | 184F20C/3.2V/20Ah |
| Battery Configuration | 184F20C-4S1P |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 20Ah |
| Rated Energy | 256Wh |
| Charging Voltage | 14.6V |
| Discharge Cut-off Voltage | 10V |
| Standard Charging Current | ≤4A |
| Standard Discharge Current | 4A |
| Internal Resistance | ≤200mΩ |
Mechanical & Environmental
| Attribute | Parameter |
| Charging Temperature | -20～45℃ |
| Discharge Temperature | -40～50℃ |
| Storage Temperature | -20～40℃ |
| Dimensions | 350×130×70 mm (Max) |
| Weight | 3.6Kg |
| Battery Case | Cold rolling metal plate |
| Communication Protocol | RS485 |
| Protection System | Short circuit protection; overcharge protection; over-discharge protection; over-current protection; temperature protection |
Application Background
This battery solution is designed for air quality sensor systems, suitable for outdoor environmental monitoring, industrial air detection, and long-term unattended data acquisition applications.
The device requires stable operation in harsh outdoor and extreme cold environments, maintaining reliable power during continuous data collection and communication, with high demands on low-temperature discharge performance, runtime stability, and structural reliability.
Project Challenges
- Stable discharge required at -40°C extreme cold conditions
- Low-temperature charging at -20°C for winter energy replenishment
- Continuous low-power operation with strict voltage stability requirements
- Long-term outdoor deployment requiring strong structural durability and protection
Customized Battery Solution
- Low-temperature LiFePO4 system supports -20°C charging / -40°C discharging
- Reinforced metal casing improves impact resistance and structural reliability
- RS485 communication enables real-time monitoring of voltage, current, temperature, and SOC
- Multiple protection design including overcharge, over-discharge, overcurrent, short circuit, and temperature protection
Application Results
- Stable power supply in extreme cold ensures 24/7 device operation
- Significantly improved data acquisition and communication reliability
- Enhanced long-term outdoor performance with reduced maintenance needs
- Improved overall system safety and extended service life
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.
Products
Related Products
