DL-USB-02 Car 12V Battery Voltage Power Display Meter Head Integrated Dual USB Output 5V2A Voltage Conversion 1. This product is fully functional, you can display the battery voltage, battery power, you can also directly plug in a mobile phone or other 5V equipment to charge. 2. Applicable to all kinds of outdoor power supplies, mobile power supplies, instruments and other equipment with additional battery power voltage display and additional USB to charge mobile phones and other functions. 3. Adopt synchronous rectification step-down chip solution, less heat. 4. Compact structure, make full use of space and reduce costs. 5. Product parameters - Static input current: 5-25mA, the lower the battery voltage, the smaller the current. - USB output: 5V 2A (one USB setting for Apple recognition and one setting for Android recognition) - The USB buck efficiency is up to 96% (because of the synchronous rectifier circuit, the buck conversion efficiency is super high and the heat generation is low. - 8-segment power resolution: 10%, 25%, 40%, 50%, 60%, 75%, 90%, 100% - The accuracy of the voltmeter is about 2% - Working temperature: -10 ～ + 65 degrees Celsius - Working humidity: 10 ～ 80% (no condensation) - Opening size: 45 × 26 × 18mm