
14.8V 20Ah 18650 Lithium Ion Battery Pack
Electrical Specifications
| Attribute | Parameter |
|---|---|
| Product Number | 01BQ1159-01 |
| Cell Model | 18650 / 3.7V / 2.5Ah |
| Battery Configuration | 18650-4S8P |
| Nominal Voltage | 14.8V |
| Nominal Capacity | 20Ah |
| Rated Energy | 296Wh |
| Charging Voltage | 16.8V |
| Discharge Cut-off Voltage | 12.0V |
| Standard Charging Current | ≤4A |
| Standard Discharge Current | 4A |
| Internal Resistance | ≤250mΩ |
Mechanical & Environmental
| Attribute | Parameter |
|---|---|
| Charging Temperature | 0~45℃ |
| Discharge Temperature | -20~60℃ |
| Storage Temperature | -20~35℃ |
| Dimensions | 170 × 90 × 78 mm |
| Weight | 1.6kg |
| Battery Case | Blue PVC |
| Protection System | Short circuit protection, overcharge protection, overdischarge protection, overcurrent protection |
Application Background
This battery solution is designed for wireless security terminals and communication equipment, widely used in remote monitoring, data acquisition, and testing instruments.
The device requires long-term stable power supply and reliable data transmission in outdoor or complex environments, demanding high endurance, voltage stability, and safety performance.
Project Challenges
Continuous operation required for 10–24 hours
Outdoor monitoring involves sustained load with intermittent peak currents
Long-term charge-discharge cycles require high durability and stability
Limited installation space requires compact size and weight control
Customized Battery Solution
4S8P high-capacity structure provides stable 14.8V power output
Adopts 18650 high-performance cells to ensure consistency and discharge stability
Multiple protection system: overcharge, overdischarge, overcurrent, short circuit protection
Blue PVC packaging enhances basic protection and installation adaptability
Application Results
Supports long-term stable operation of security and communication equipment
Improves voltage stability by ~20%+ under high-load conditions
Enhances power supply reliability and reduces risk of power loss
Stable cycle life reduces maintenance and replacement 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)












