Description DescriptionPackage : SMDis_customized : YesModel Number : USB Charger Battery Capacity Voltage Current TesterOperating Temperature : -45-+85Dissipation Power : 1Supply Voltage : 3V-7VApplication : ComputerCondition : NewType : Voltage RegulatorBrand Name : EstardynOrigin : Mainland ChinaI. Performance parameters1, input/output voltage: 3V-7V2. Voltage resolution: 0.01V3, input/output current: 0.05A-3.5A4. Current resolution: 0.01A5. Test capacity range 0-19999 MA6, accuracy: plus or minus 1%7. Line loss: about 0.1 euros8. Test contents: battery voltage, current and discharge capacity (10 sets of data in total)9. Communication function: Yes10, data calibration functionIi. CharacteristicsAt the same time display voltage current and mAH data, easy to viewCan detect the mobile power output mAHMulti-group detection data saving and power failure saving functionData transmission is not affectedHigher accuracy, the current parameters will not jumpUSB male head and MicroUSB port double power, can detect the quality of MicroUSB cableCurrent sampling 25 mm, less lossWith precision current calibration function, the current accuracy is higher (it has been calibrated when delivered)Iii. Instructions for useVoltage and current measurement:USB male plug 5V charger, female plug mobile phone and other devices, directly read the voltage and current parametersMeasurement of MicroUSB wire quality:Mother plug mobile phone and other equipment, first use the machine male plug 5V charger, remember the voltage, and then use MicroUSB line from 5V charger plug into the machine MicroUSB hole remember the voltage, the smaller the voltage gap MicroUSB line quality is betterMeasure battery capacity:Using linear charging circuit such as TP4056 through this capacity table to completely no power battery to fully full, capacity reading for the battery capacity, using this method can also measure mobile phone charging capacity, and even calculate mobile phone charging efficiencyTo measure the output capacity and efficiency of mobile power supply:First connect the machine to the mobile power supply, turn on the mobile power supply, long press the button until the capacity data returns to zero, insert the mobile phone to charge more until the mobile power supply is out of power and automatically shut down. The next time you turn on the machine, the displayed capacity is the mobile power output mAH. Note that this mAH is much smaller than the nominal mAH, output mAH* Output voltage 5V/ battery mAH* battery voltage 3.7V= mobile power efficiencyData calibration function SettingsOne electronic load meter, one constant current source.The constant current source should be adjusted to 8.5V and above and below 10V (9V is recommended), and the electronic load should be set to CC mode (constant current mode) for calibration of the four currents 3A, 2A, 1A and 0.3A.Take 3A as an example:3A calibration: the electronic load is set in constant current mode 3A, the current of the LCD screen of the meter will automatically and slowly calibrate (about 10S). You can see that the current of the LCD screen will change, and turn off the automatic protection of the electronic load data after calibration.Data zeroingPress and hold the key until the (number of data) becomes the next set, release the key, automatically jump to the next set of data from zero.Data viewingDouble-click the button (within 0.5S) to enter the data viewing mode, and the backlight LED will flash, and then display the next set of data. Double-click to exit the data viewing mode, and the backlight LED will keep bright.The voltage is high or lowLCD arrow, backlight LED will flash, alarm prompt. Press the button and the LED will keep on for 30S.Power on statusThrough MicroUSB or USB male with line power on, LCD screen all contents display 1S (detection LCD screen is intact), and then display the last data (capacity, and several groups of data), the current voltage, current and voltage on the high or low tips.