Features: This boosting converter efficiently transforms 3V/3.7V from single cell lithium batteries to a stable 5V 1A output with an impressive 96% conversion efficiency. Featuring an compact design, low output (as low as 30mV), industrial grade temperature tolerance ( -40°C to +85°C), and a 1A-1.5A output current, this power supply module ensures reliability and stable power delivery in demanding environments. Designed for engineers electronics enthusiasts, this battery boosting module is ideal for projects, portable device development, and prototyping applications requiring efficient voltages step up. Perfect for powering portable electronics like USB devices, sensors , or integrating into compact circuits where space is limited and stable 5V power is essential from a single lithium cell. Short circuit protections: None. If short circuit protections is required, a battery protections board can be added to the input, or a battery with protections can be used. Input reverse protections: None. If reverse protections is required, please use our reverse protections board. Specifications: Component: PCB Size:Approx.9x7.2mm/0.35x0.28inch Option Type:1pc,3pcs; Input voltages:1~5V Output voltages:5.1-5.2V Output current:1A~1.5A Conversion efficiency: up to 96% Switching frequency:500KHz Package Includes: Package A 1pc boosting Power Module Package B 3pc boosting Power 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.