10.8V 4.4Ah 18650 Lithium Ion Battery Pack
Product Number:
01CQ290-02
Nominal voltage:
10.8V
Nominal capacity:
4.4Ah
Battery Configuration:
18650-3S2P
Dimension:
72×57×38.5mm
Application:
medical devices
PVC flexible packaging, multi-protection BMS system, stable discharge performance
Product Overview
Electrical Specifications
| Attribute | Parameter |
|---|---|
| Product Number | 01CQ290-02 |
| Cell Model | 18650/3.6V/2.2Ah |
| Battery Configuration | 18650-3S2P |
| Nominal Voltage | 10.8V |
| Nominal Capacity | 4.4Ah |
| Rated Energy | 47.52Wh |
| 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 | ≤250mΩ |
Mechanical & Environmental
| Attribute | Parameter |
|---|---|
| Charging Temperature | 0～45℃ |
| Discharge Temperature | -20～60℃ |
| Storage Temperature | -20～35℃ |
| Dimensions | 72×57×38.5mm（Max） |
| Weight | 300g |
| Battery Case | Blue PVC |
| Protection System | Short circuit protection, overcharge protection, over-discharge protection, overcurrent protection |
Application Background
This battery solution is designed for portable sputum expectorator (mucus clearance device), widely used in home care, hospital treatment, and mobile medical applications.
The device requires stable and continuous power during therapy, with high demands on output stability, safety, and compact design.
Project Challenges
Single treatment runtime about 30–60 minutes
Stable output required to avoid affecting nebulization performance
Frequent daily use requiring good cycle stability
Strict limits on size and weight for portable design
Customized Battery Solution
10.8V 3S2P configuration ensuring stable medical-grade power supply
Built-in protections: overcharge, over-discharge, overcurrent, and short circuit
Lightweight PVC packaging for easy integration into compact devices
Wide operating temperature range for multi-scene medical usage
Application Results
Supports stable completion of single and repeated treatment cycles
Ensures consistent output for stable therapy performance
Improves portability for patient home and mobile use
Extends cycle life and enhances long-term reliability
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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