Features: This 18W lithium batteries fast charging boosting module efficiently power 2s/3s 3.7V polymer batteries with USB C input, featuring wide DC4.5-9.5V compatibility for rapid charging of drones, power tools. Engineered with built in boosting converter and temperature resistant design, the compact module delivers stable voltages regulation while providing real time LED statuses monitoring for optimal charging control. Ideal for electronics engineers, hobbyists, and enthusiasts requiring reliability multicell battery management in drones, electric screwdrivers, or solar powered equipment. Perfect for workshop environment, outdoor powerbanks, and compact devices where space saving lithium batteries charging solution with USB C connectivity are critical. Combining high efficiency charging (up to 93%conversion rate) with 2/3S battery compatibility, this lightweight module ensures safe power delivery across industrial tool. Specifications: Component: PCB Size:Approx.20.5x14x3.8mm Option Type:1pc,2pcs; Charging: USB C Working voltages: DC4.5~9.5V Most charging current: 1.5A Charging Power: 18W Pressure boosting Operating Frequency: 500Khz Applicable Battery: 2s/3s 3.7V lithium batteries/polymer lithium batteries (2s charging mode requires removing the module resistance) Package Includes: Package A 1pc Fast charging boosting Converter Module Package B 2pc Fast charging boosting Converter Module note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.