
14.8V 2.2Ah 18650 Lithium Ion Battery Pack
Designed for ECG machines and portable medical diagnostic equipment, this 14.8V lithium battery is used in hospital monitoring, emergency transport, and bedside examination scenarios requiring continuous operation. With stable output and compact structure, it ensures reliable and safe long-term power support for critical medical applications.
Electrical Specifications
| Attribute | Parameter |
|---|---|
| Product Number | 22AQ002-02 |
| Cell Model | 18650 / 3.7V / 2.2Ah |
| Battery Configuration | 18650-4S1P |
| Nominal Voltage | 14.8V |
| Nominal Capacity | 2.2Ah |
| Rated Energy | 32.56Wh |
| Charging Voltage | 16.8V |
| Discharge Cut-off Voltage | 12.0V |
| Standard Charging Current | ≤1A |
| Standard Discharge Current | 1A |
| Internal Resistance | ≤350mΩ |
Mechanical & Environmental
| Attribute | Parameter |
|---|---|
| Charging Temperature | 0~45℃ |
| Discharge Temperature | -20~60℃ |
| Storage Temperature | -20~35℃ |
| Dimensions | 148 × 70.5 × 20mm (Max) |
| Weight | 480g |
| Battery Case | Blue PVC |
| Protection System | Short circuit / Overcharge / Overdischarge / Overcurrent protection |
Application Background
This battery solution is designed for ECG machines and portable medical diagnostic devices, suitable for hospital wards, emergency transport, and primary healthcare scenarios.
The equipment requires long-term stable operation with reliable power during continuous measurements, demanding high stability, safety, and compact structure.
Project Challenges
ECG devices require 6–8 hours of continuous operation
High demand for stable power during medical signal acquisition
Frequent mobility requires low weight and compact size
Medical applications require strict safety and reliability standards
Customized Battery Solution
14.8V 4S1P configuration: ensures stable power supply for medical equipment
Blue PVC enclosure: lightweight design with basic protection
Multi-protection system: overcharge, overdischarge, overcurrent, and short-circuit protection
Stable output design: ensures continuous ECG signal acquisition
Application Results
Supports continuous operation for 6–8 hours
Provides more stable and reliable ECG monitoring performance
Lightweight design improves device portability
Stable cycle performance extends equipment 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)











