
11.1V 12.5Ah 18650 Lithium Ion Battery Pack
This battery is designed for handheld testing equipment used in field inspection, data collection, and mobile measurement scenarios. It ensures stable output and compact structure, supporting long continuous operation and high-frequency testing tasks.
Electrical Specifications
| 属性 | 参数 |
|---|---|
| Product Number | 11AQ0003-01 |
| Cell Model | 18650/3.7V/2.5Ah |
| Battery Configuration | 18650-3S5P |
| Nominal Voltage | 11.1V |
| Nominal Capacity | 12.5Ah |
| Rated Energy | 138.75Wh |
| Charging Voltage | 12.8V |
| Discharge Cut-off Voltage | 9.0V |
| Standard Charging Current | ≤2A |
| Standard Discharge Current | 2A |
| Max Continuous discharge current | 3.0A |
| Internal Resistance | ≤200mΩ |
Mechanical & Environmental
| 属性 | 参数 |
|---|---|
| Charging Temperature | 0~45℃ |
| Discharge Temperature | -20~60℃ |
| Storage Temperature | -20~35℃ |
| Dimensions | 131×90×40mm |
| Weight | 800g |
| Battery Case | Blue PVC |
| Protection System | Short circuit / Overcharge / Over-discharge / Overcurrent protection |
Application Background
This battery solution is designed for handheld testing equipment, suitable for field inspection, data acquisition, and mobile measurement applications.
The device requires long continuous operation and stable power supply during frequent testing and data transmission, demanding high runtime and output stability.
Project Challenges
Continuous operation required for 8–12 hours
Frequent testing loads cause dynamic current fluctuations
Multiple charge-discharge cycles per day require strong cycle life
Limited device space requires compact size and lightweight design
Customized Battery Solution
High-stability output design to ensure continuous power supply for handheld testing devices
Multi-protection BMS: overcharge, overdischarge, overcurrent, short circuit, and temperature protection
Wide temperature adaptability for complex indoor and outdoor environments
Compact and lightweight structure for portable device integration
Application Results
Supports long-duration continuous testing operations
Stable output ensures reliable measurement and data acquisition
Improved portability for mobile field applications
Stable cycle performance extends device 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)












