Soft pack lithium batteries, commonly known as lithium polymer (LiPo) pouch cells, are widely used in modern electronics, medical devices, and portable industrial equipment due to their lightweight, flexible form factor, and high energy density. When engineering a product that utilizes soft pack batteries, understanding the core technical parameters is essential for ensuring device safety, performance, and longevity.
Below is a detailed breakdown of the standard technical requirements and main parameters for a typical 3.7V soft pack lithium battery configuration.
Electrical Specifications
- Nominal Voltage: 3.7V
- Operating Voltage Range: 2.4V – 4.2V
- Nominal Capacity: 1250mAh
- Standard Continuous Discharge Current: 0.2C
- Maximum Continuous Discharge Current: 0.5C
- Finished Product Internal Resistance: ≤ 150mΩ
Thermal and Physical Parameters
- Operating Temperature (Charging): 0°C to 45°C
- Operating Temperature (Discharging): -20°C to 60°C
- Product Dimensions: MAX 9.5mm × 35mm × 52mm
- Lead Wire Specifications: UL1007 / 24# AWG standard wire, length 55mm
BMS (Battery Management System) Protection Parameters
To ensure operational safety and prevent thermal runaway, soft pack lithium batteries must be equipped with precise protection circuitry. The standard protection board parameters include:
- Overcharge Protection Voltage: 4.325V ± 0.025V per cell (string)
- Over-discharge Protection Voltage: 2.5V ± 0.05V
- Overcurrent Protection Value: 2A – 4A
Custom Soft Pack Lithium Solutions by Hysincere
While standard parameters fit many applications, specialized industrial and commercial devices often require customized power solutions. At Hysincere, we engineer and manufacture high-quality soft pack lithium-ion and LiFePO4 battery cells tailored to your exact specifications. From custom dimensions and capacities to advanced BMS integration with precise overcharge and overcurrent protection, Hysincere delivers reliable and safe battery cells for your most demanding projects.
