12.8V 140Ah Low Temperature Charge and Discharge LiFePO4 Battery
Product Number:
08DQ0065-01
Nominal voltage:
12.8V
Nominal capacity:
140Ah
Battery Configuration:
2270160-4S7P
Dimension:
200 × 270 × 400 mm
Application:
Subway freight train monitoring equipment
-20℃charge / -40℃ discharge, RS485 CAN communication, Sheet metal case
Product Overview
Electrical Specifications
| Attribute | Parameter |
| Product Number | 08DQ0065-01 |
| Cell Model | 2270160 / 20Ah / 3.2V |
| Battery Configuration | 2270160-4S7P |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 140Ah |
| Rated Energy | 1792Wh |
| Charging Voltage | 14.4V |
| Discharge Cut-off Voltage | 8.10V |
| Standard Charging Current | ≤20A |
| Standard Discharge Current | 20A |
| Max Continuous Discharge Current | 30A |
| Internal Resistance | ≤100mΩ |
Mechanical & Environmental
| Attribute | Parameter |
| Charging Temperature | -20 ~ 45℃ |
| Discharge Temperature | -40 ~ 55℃ |
| Storage Temperature | -20 ~ 20℃ |
| Dimensions | 200 × 270 × 400 mm |
| Weight | ≤40 kg |
| Battery Case | Sheet metal case |
| Communication Protocol | RS485 / CAN |
| Protection System | Over charge / over discharge / over current / short circuit / over temperature protection / intelligent BMS power management system |
Application Background
This battery solution is designed for subway freight train monitoring equipment, used in railway vehicle real-time monitoring, data acquisition, and remote communication applications.
The system requires stable power supply under long-term continuous operation and complex vibration environments, with high demands on low-temperature performance, reliability, and mechanical strength.
Project Challenges
- Requires stable operation in extreme cold conditions, supporting -20°C charging and -40°C discharging
- Frequent vibration and shock during vehicle operation require high structural reliability
- 24/7 continuous power supply is needed to ensure stable real-time data transmission
- Limited installation space with strict size and weight constraints
Customized Battery Solution
- LiFePO4 system: 12.8V 140Ah high-capacity design for long-lasting stable power supply
- Wide temperature performance: -20°C charging / -40°C discharging for extreme railway environments
- Metal sheet housing: enhanced vibration resistance and mechanical strength
- Smart BMS: RS485/CAN communication with over charge / over discharge / over current / short circuit / over temperature protection
Application Results
- Ensures stable 24/7 monitoring operation
- Maintains reliable performance under extreme low-temperature conditions
- Improved vibration resistance for complex railway environments
- Enhanced system stability and reduced maintenance frequency
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.
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