18650 18V 5100mAh Lithium ion Battery Pack

Application Background

This battery solution is designed for portable infusion pump medical devices, suitable for continuous infusion and mobile monitoring scenarios.

The device requires long-lasting stable power and voltage reliability during frequent operation and data transmission, demanding high performance in endurance, output safety, and compact design.

Project Challenges

• Continuous operation required for 6–8 hours or more
• High instantaneous discharge load may cause voltage fluctuations
• Frequent charging and discharging, demanding long cycle life and stability
• Limited device size, strict constraints on dimensions and weight

Customized Battery Solution

• High-voltage 18V output structure to support continuous device operation
• Blue PVC heat-shrink film case, lightweight and reliable
• Multi-protection system: short circuit, overcharge, overdischarge, overcurrent, ESD, and temperature protection
• Wide-temperature compact design: -20–60℃ operation, suitable for portable device space

Application Results

• Supports continuous operation for 6–8 hours or more
• Voltage stability improved by ~15% under high discharge load
• Lightweight design, enhancing portability and handling
• Excellent cycle performance, extending device service life