5Pcs 18650 Lithium Battery Module 3.7V-9V 5V/2A Type-C Charging Boost Discharge Integrated Adjustable Blackboard

Product Description

Features: - Versatile Voltage Conversion: This module boosts a single 3.7V 18650 lithium battery to adjustable output voltages of 5V or 9V, suitable for various electronic devices like smartphones and tablets. - High Output Current: Supports a maximum output current of 2A, ensuring fast and efficient charging. - Integrated Charging Management: Features overcharge, over-discharge, and short-circuit protection, enhancing battery longevity and safety. - Compact and User-Friendly Design: Ideal for enthusiasts, engineers, and beginners, this module offers easy connectivity with clear terminals, making it accessible for users of all skill levels. - Real-Time Monitoring: Equipped with LED indicators, the module provides real-time status updates on charging and operation, allowing users to monitor performance easily.  Specifications: - Component Size: Approx. 23.4 x 18 mm (0.92 x 0.71 inches) - Input Voltage: 3.7V (single 18650 lithium battery) - Output Voltage: Adjustable from 5V to 9V - Output Current: Up to 2A - Power: 5W - Charging Voltage: 4.2V for fully charged 18650 batteries  Package Includes: - 5pcs 18650 Battery Boost Converters (without additional protection features)  Note: - Please allow a 1mm error due to manual measurement. - Due to differences between monitors, the picture may not reflect the actual item color. - Warning: Customers without a multimeter should not purchase this product.  Applications: - Powering portable gadgets such as smartphones, tablets, and other USB-powered devices. - Integrating into custom projects where a compact and reliable power source is needed.