Car DC Voltage Electricity Table 1224V Battery Lead-Acid Battery Turn 5V USB Fast Charge Display Features: 1. The default 12V battery mode, other specifications of batteries need to be set by the button 2. The USB port fast charging function requires the cooperation of the mobile phone and cannot be activated every time. If it cannot be activated, please plug and unplug it several times. 3. One screen display of voltagebatterybattery percentage 4. Support a variety of batteries, battery type and number of strings can be set (default 12V lead-acid battery) 5. Support input voltage range DC6V-30V, support 3.63.7V lithium battery 2 series 7 series battery pack, 3.2V lithium iron phosphate battery 2 series-8 series battery pack, lead-acid battery 12V 24V battery, 1.2V Ni-MH battery pack The power can be set according to the multiple voltage of the 3.6V lithium battery, which supports the use of regulated DC power input within this voltage range, and the voltage can be displayed normally, but the power function is invalid 6. Input reverse connection protection, reverse connection will not burn the module 7. Dual independent USB, using IP6505T fast charge identification chip 8. Support QC2.0QC3.0FCPSCPMTKAPPLE and other mainstream fast charging protocols 9. Support input anti-reverse connection protection, output over current, short circuit protection parameter: 1. Input voltage: DC6V-30V (Note: The USB port is a step-down power supply. If the input voltage is less than 12V, it cannot support 12V fast charging. The same is true for 9V fast charging. The output voltage can only be less than the input voltage) 2. Power display: 7-segment display (percent 13263952657891) 3. Output voltage: 5V, automatically adjusted between 3-12V after triggering quick charge 4. Output power: USB1 24W (5V4A, 9V2.5A, 12V2A, etc.); USB2 24W (5V4A, 9V2.5A, 12V2A, etc.) 5. Size: about 7.9x4.3x2.6 cm 6. Weight: about 43 grams Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.