21700 18V 4900mAh Lithium-ion Battery Pack
Product Number:
05DQ0065-01
Nominal voltage:
18V
Nominal capacity:
4.9Ah
Battery Configuration:
21700-5S1P
Dimension:
108 × 76 × 23 mm
Application:
portable medical equipment
SMBus communication support, MOLEX connector output, Compact 21700 design
Product Overview
Electrical Specifications
| Attribute | Parameter |
|---|---|
| Product Number | 05DQ0065-01 |
| Cell Model | 21700 / 3.6V / 4900mAh |
| Battery Configuration | 21700-5S1P |
| Nominal Voltage | 18V |
| Nominal Capacity | 4.9Ah |
| Rated Energy | 88.2Wh |
| Charging Voltage | 21V |
| Discharge Cut-off Voltage | 12.5V |
| Standard Charging Current | ≤2.5A |
| Standard Discharge Current | ≤3.5A |
| Max Continuous Discharge Current | ≤3.5A |
| Internal Resistance | ≤180mΩ |
Mechanical & Environmental
| Attribute | Parameter |
|---|---|
| Charging Temperature | 0 ~ 45℃ |
| Discharge Temperature | -20 ~ 60℃ |
| Storage Temperature | -20 ~ 35℃ |
| Dimensions | 108 × 76 × 23 mm |
| Weight | 400g |
| Battery Case | Blue PVC heat shrink film |
| Protection System | Short circuit, Overcharge, Overdischarge, Overtemperature, Overcurrent, ESD protection |
Application Background
This battery solution is designed for portable IVD (in vitro diagnostic) devices and mobile medical equipment, widely used in field testing, rapid screening, and medical data acquisition scenarios.
The system requires stable power supply in mobile environments to ensure continuous testing and data accuracy, with high demands on power stability, compact size, and safety.
Project Challenges
- Frequent testing and data acquisition requiring stable operation
- High voltage stability required for accurate medical diagnostics
- Compact structure (108×76×23mm) with strict space constraints
- Portable usage demanding lightweight and high energy density
Customized Battery Solution
- 5S1P 18V compact platform (4.9Ah / 88.2Wh) balancing size and energy needs
- 21700 high energy density cells for improved efficiency
- Integrated SMBus communication with precise monitoring for real-time battery management
- Comprehensive protection system (overcharge, overdischarge, overcurrent, overtemperature, short circuit, ESD) for medical-grade safety
Application Results
- Improved power stability and reliability for IVD devices
- Enhanced portability and lightweight user experience
- Upgraded battery management with better visibility and control
- Increased overall system safety and long-term operational stability
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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