Low Temperature 18650 7.4V 12.8Ah Lithium-ion Battery Pack
Product Number:
37DZ078-07
Nominal voltage:
7.4V
Nominal capacity:
12800mAh
Battery Configuration:
18650-2S4P
Dimension:
90 × 77 × 38.8 mm
Application:
Node Instrument
Ultra-low temperature discharge, Multi-protection safety system, Rugged ABS+PC housing
Product Overview
Electrical Specifications
| Attribute | Parameter |
| Product Number | 37DZ078-07 |
| Cell Model | 18650 / 3.6V / 3350mAh |
| Battery Configuration | 18650-2S4P |
| Nominal Voltage | 7.4V |
| Nominal Capacity | 12800mAh |
| Rated Energy | 94.72Wh |
| Charging Voltage | 8.4V |
| Discharge Cut-off Voltage | 4.8V |
| Standard Charging Current | ≤8A |
| Standard Discharge Current | <2A |
| Internal Resistance | ≤150mΩ |
Mechanical & Environmental
| Attribute | Parameter |
| Charging Temperature | 0 ~ 45℃ |
| Discharge Temperature | -40 ~ 60℃ |
| Storage Temperature | -20 ~ 35℃ |
| Dimensions | 90 × 77 × 38.8 mm |
| Weight | 540g |
| Battery Case | ABS + PC |
| Protection System | Short circuit / Overcharge / Overdischarge / Overcurrent / Temperature detection / etc. |
Application Background
This battery pack is designed for surveying and mapping node instrument systems, suitable for field data acquisition and long-term outdoor monitoring applications.
The equipment operates in low-temperature and complex outdoor environments, requiring stable power supply and reliable data transmission, with high demands on low-temperature performance, reliability, and structural durability.
Project Challenges
- Operating temperature can reach -40℃, requiring stable discharge performance
- Significant capacity drop under low temperature, requiring high usable capacity retention
- Long-term unattended operation demands high power reliability
- Harsh outdoor conditions require strong mechanical durability
Customized Battery Solution
- Ultra-low temperature cell system enabling stable discharge at -40℃
- 2S4P configuration ensures stable 7.4V output and capacity support
- Integrated protection system: overcharge, overdischarge, overcurrent, short circuit, temperature protection
- Industrial-grade ABS+PC housing for impact resistance and environmental durability
Application Results
- ≥85% capacity retention at -40℃under 0.5C discharge, ensuring stable low-temperature operation
- Improved system stability and data reliability in extreme cold environments
- Reduced risk of power interruption during field deployment
- Extended operational life in harsh outdoor conditions
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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