Upgrade your battery charging and power measurement experience with our Volt Meter Dual USB Fast Charger, featuring a 7-segment display for accurate voltage and power readings. This compact and portable device is designed for battery charging and electronic equipment, providing a reliable and efficient solution for your power needs. Key Features: · High-Accuracy 7-Segment Display: Monitor voltage and power levels with precision, ensuring optimal charging and operation of your devices. · Dual Independent USB Ports: Charge two devices simultaneously, with built-in IP6505T fast charge identification chip for safe and efficient charging. · Wide Operating Temperature Range: -10°C to 60°C, allowing for flexible use in various environments. · Large Temperature Span: Strong adaptability for use in diverse temperature conditions. · Fast Charging Support: Compatible with QC2.0 / QC3.0 / SCP / MTKIAPPLE and other mainstream fast charging protocols, ensuring rapid charging for your devices. · Multi-Battery Support: Set battery type and number of strings for accurate readings and efficient charging. · Compact and Portable: Lightweight and easy to carry, making it perfect for on-the-go use. · High Efficiency: 90%-97% USB efficiency for reduced heat generation and increased reliability. Specifications: · Material: ABS · Input Voltage: DC 6V-30V · Power Display: 7-Segment Display (13%, 26%, 39%, 52%, 65%, 78%, 91%) · Output Voltage: Default 5V (Automatically adjusts between 3-12V after triggering fast charge) · Output Power: Maximum 24W · Temperature: -10°C— 60°C · Working Humidity: 10-80% (No Condensation) · Package Includes: 1 x Volt Meter