1-20PCS Mini Lithium Battery Charging Board Module 3.7V 4.2V 18650 Lithium Battery Charger Protection Board Type-C Interface

Ultra-Compact Design: This charging board is incredibly small and lightweight. Its compact size makes it easy to embed into tight spaces, such as smart wearables and micro-drones, without adding bulk. Constant Current/Constant Voltage Charging: This charging board utilizes a constant current/constant voltage (CC/CV) charging mode to ensure maximum charging rate while preventing overheating. This mode helps maintain optimal temperature and prolong battery life. Precise Charge Voltage: This charging board provides a precise charge voltage of 4.2V (±1%), ensuring safe and efficient charging. This accuracy helps protect your battery and extend its overall lifespan. Trickle Charge for Low-Charge Batteries: This charging board has a trickle charge threshold of 2.8V, effectively restoring the health of low-charge batteries. It ensures that even partially discharged batteries can be charged safely and efficiently. Thermal Regulation: The charging board features thermal regulation to prevent overheating during charging. Current Monitoring: A current monitoring output allows you to track charging progress and ensure optimal power delivery. Automatic Charging: The automatic charging feature ensures your battery is always in top condition and ready for use. Package Includes: One or three mini Type-C 18650 lithium battery charging boards. Each charging board is carefully packaged to ensure it arrives intact. Ideal Uses: Users of smart wearables, micro-drones, and other compact electronic devices who require a reliable and efficient 18650 lithium battery charging solution. This practical and space-saving mini charging board keeps your devices charged and ready for use. Specifications Dimensions: 1*0.7*0.5cm Material: PCBA Charging Current: 600mA Charging Voltage: DC 4.2V (±1% accuracy) Trickle Charge Threshold: 2.8V Charging Port: USB Type-C Package Includes: 1/5/10/20*Li-ion Battery Charging Board, 3*Li-ion Battery Charging Boards