Description of USB Battery Voltage Indicator:
The surge voltage on the car, inverter, motor and other equipment is too high, please be sure to choose the 30V withstand voltage type, otherwise the damage is at your own risk!
The latest 30V withstand voltage option has been added. If your battery is used to connect motors, inverters, cars and other devices with high surge voltage, be sure to choose the 30V withstand voltage option; all the more than 4S are with a withstand voltage of 30V chip;
Increase the single one cell lithium battery option, from now on the single one cell lithium battery can also be used, increase the boost output 5V 2A circuit.
 Increase the under-voltage warning function, the 12.5% light flashes when the battery has only the last level of power! At this time, it is best to stop the voltage and charge!
The latest addition of the three-display function option. The three-display refers to the addition of the digital power percentage display function on the basis of the original pictographic power display and digital voltage display. The function of displaying the voltage value of 2 seconds and the percentage value of 2 seconds can be realized by the 2 second jump. Every customer is welcome to choose.
Specifications of USB Battery Voltage Indicator:
Input voltage limit value (the peak value that can be seen by the oscilloscope): 1-3S lithium batteries, 12V lead acid (not mark 30V ); 18V (the average value of the multimeter does not exceed 15V) ; 3S lithium batteries 12V lead acid (mark 30V) ; 4-7S lithium battery, 24V lead-acid: 36V (the average value that the multimeter can see does not exceed 30V)
Static input current: 5-25MA, the lower the battery voltage, the lower the current.
USB output: 5V/2A (one USB is set for iphone identification, the other is set for Android identification
The USB step-down efficiency is up to 96% (because of the synchronous rectification circuit, the step-down conversion efficiency is super high, and the heat is low.
8-segment power rate: 10% 25% 40% 50% 60% 75% 90% 100%
 the accuracy of the voltmeter is about 2%
Working temperature: -10~+65℃8
Working humidity: 10~80% (non-condensing)
Hole size: 45×26×18MM