Enhance your portable power solutions with this Dual USB Power Bank Module, designed to provide efficient charging management and reliable protection for lithium batteries. Featuring a clear LCD screen, this module offers real-time charging and output load indication, ensuring you stay informed throughout the charging process. Key Features: · LCD Charging Indication: The screen prominently displays the word 'IN' during charging, giving you immediate visual confirmation of the charging status. · Output Load Display: Once a load is connected, a long press on the LED switch activates the output, and the screen shows 'OUT' along with the current output voltage and current, selectable between 5V/1A or 5V/2.1A. · Integrated Battery Protection Circuit: Safeguards against overcharge, overdischarge, and overload, ensuring the longevity and safety of connected lithium batteries. · Easy Battery Connection: Simply connect the battery’s positive pole to B+ and the negative pole to B- for optimal performance. · Supports Multiple Batteries in Parallel: Compatible with single or multiple lithium batteries connected in parallel, provided each battery has a capacity of up to 20,000mAh and a voltage range of 3V to 4.2V. · Compact and Lightweight Design: Measuring 58 x 27 x 15mm and weighing approximately 13g, this module is easy to integrate into various DIY power bank projects or portable charging systems. Specifications: · Size: 58*27*15mm (2.28*1.06*0.59in) · Weight: Approx. 13g · Output Voltage/Current: 5V/1A or 5V/2.1A Package Includes: · 1 x Dual USB Power Bank Module This Dual USB Power Bank Module is ideal for anyone looking to build a safe, efficient, and user-friendly portable power bank setup. Its advanced protection features combined with clear LCD status indications make battery management straightforward and secure. Perfect for lithium battery packs within the specified capacity and voltage, this module supports flexible configurations and ensures reliable power output for your devices.