
18650 18V 6.6Ah Lithium-ion Battery Pack
Electrical Specifications
| Attribute | Parameter |
|---|---|
| Product Number | 33DZ014-02 |
| Cell Model | 18650 / 3.6V / 3.35Ah |
| Battery Configuration | 18650-5S2P |
| Nominal Voltage | 18V |
| Nominal Capacity | 6.6Ah |
| Rated Energy | 118.8Wh |
| Charging Voltage | 21.0V |
| Discharge Cut-off Voltage | 15V |
| Standard Charging Current | ≤3.0A |
| Standard Discharge Current | ≤6A |
| Max Continuous Discharge Current | ≤6A |
| Internal Resistance | ≤200mΩ |
Mechanical & Environmental
| Attribute | Parameter |
|---|---|
| Charging Temperature | 0 ~ 45℃ |
| Discharge Temperature | -20 ~ 60℃ |
| Storage Temperature | -20 ~ 45℃ |
| Dimensions | 130 × 78 × 62 mm |
| Weight | 650g |
| Battery Case | Sheet Metal Housing |
| Communication Protocol | RS485 |
| Protection System | Short circuit, Overcharge, Overdischarge, Overcurrent, Temperature protection (65℃±5℃), Anti-reverse connection protection |
Application Background
This battery solution is specifically designed for handheld devices and portable medical equipment, suitable for mobile diagnostics, monitoring instruments, and on-site data collection applications.
The device is required to operate reliably in clinical and outdoor environments for extended periods, while supporting data communication and high surge current startup, placing higher demands on output stability, safety, and structural strength.
Project Challenges
Continuous operation required for 6–8 hours or more
Instant startup current up to 25–45A requiring strong high-rate performance
18V system platform with strict voltage stability requirements
Wide operating temperature range (-20°C to 60°C) with high safety standards
Customized Battery Solution
5S2P 18V configuration with 118.8Wh rated energy for extended runtime
Supports 25–45A surge discharge to ensure stable high-load startup
Integrated RS485 communication interface for battery data interaction
Sheet metal housing with comprehensive protection system (overcharge, overdischarge, overcurrent, short circuit, temperature, anti-reverse connection) to enhance structural and electrical safety
Application Results
Supports continuous operation for 6–8+ hours
High-load startup stability improved by approximately 20%+
Communication function enhances system monitoring and maintenance efficiency
Improved structural strength and safety performance for medical-grade 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)












