YINETTECH 5 Pack Charger Module 2A 18650 Li Ion Battery Fast 3.7V Boost to 5V 9V 12V with Overcharge Protection for Powered Equipment

1. Efficient and versatile charging: Our Battery Charger Upward Module Pack of 5 is designed to efficiently convert the power from a 3.7V lithium battery to a range of outputs, including 5V, 9V, and 12V. This versatile module allows you to easily build a charging power supply for different devices. 2. Reliable overcharge protection: With its built-in overcharge protection feature, this charger ensures safe and secure charging of your batteries. The charging voltage is set at a reliable 4.2V, while the charging current is approximately 1A, providing optimal protection for your batteries. 3. Wide input and adjustable output: This charger supports a wide input voltage range of 4.5-8V, making it compatible with various power sources. Moreover, the output voltage can be adjusted between 4.3-27V, allowing you to tailor the charging power supply to meet your specific needs. 4. Convenient input interface: The charger comes with a convenient DC 5V input interface, making it easy to connect to a power source. This ensures a stable and reliable power input for efficient charging. 5. High-quality construction: Our Battery Charger Upward Module is made with high-quality materials, ensuring durability and reliability. It is designed to withstand the demands of frequent use and provides long-lasting performance, making it an excellent choice for any 3.7V to 5V 18650 battery charging needs.