测试图片：

5V resistive load:

When using the discharge resistor will be very hot， Do not touch to avoid burns; Do not put flammable when used on explosive objects， not in direct contact with the heating resistor to the desktop， so as not to scorch the desktop; winding resistance when heated may appear white smoke or odor phenomenon， which is normal， please be assured use.

2A default delivery when needed to solder the board cut is 1A 1A

Performance parameters:


1， the input charge voltage: 3V-7V


2， the input current: <3.4A

3， the test: battery voltage， current， discharge capacity (total of 10 sets of data)

4， the communication function:

5， the data calibration function (the factory did prospective effect， the hand can be directly used)

     Calibration data set: an electronic load device， a constant current source.

     Constant current source adjusted to 8.5V and less than 10V (recommendation 9V)， electronic load is set to CC mode (constant current mode) 3A， 2A， 1A， 0.3A， respectively， the four current calibration.

     In 3A as an example:

      When 3A Calibration: Setting constant current mode electronic load 3A， LCD fuel gauge current calibration automatically slowly (about 10S) can see the current will change the LCD screen， turn off the electronic load calibration data is automatically protected.

6， the data is cleared: Press and hold the button until after (the first of several sets of data) into the next set and release the button to automatically skip to the next set of data from scratch.

7， View: Double-click the button (0.5S or less) into the viewing data viewing mode， backlight LED flashes， and then click to display the next set of data， double-click to exit View mode， long bright LED backlight.

8， high or low voltage: arrow LCD backlight LED flashes， the alarm prompt. Press the button LED lit 30S.

9， power status:

 MicroUSB powered by USB cable or with male， the entire contents of the LCD display 1S (detection LCD screen is intact)， then displays the last data (capacity， and the second several sets of data)， current voltage， current and high voltage or low tips.


(LCD surface protection film， demanding the hand can scratch coating Presentation mirror effect.)

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Measuring voltage and current:
    USB male plug 5V chargers， mobile phones and other equipment female insert， read current and voltage directly

MicroUSB line quality measurement:
    Female plug mobile phones and other devices， first use the native male plug 5V chargers， remember that voltage， then MicroUSB cable into the bore in mind that the machine MicroUSB charger 5V voltage from the voltage the better the quality gap is smaller MicroUSB cable
 


Battery capacity test:


    Use TP4056 and other linear charging circuit through this capacity to the table completely empty battery is fully charged to full capacity reading on the battery capacity， the use of this method can be measured charge capacity of the phone， the phone can even calculate the charging efficiency
 
Mobile measuring power output capacity and efficiency:
    The first machine connected mobile power， mobile power turn on， long press the button until the volume of data to zero， charging into the phone several times until the move is no power supply is automatically shut down. Next is the display capacity mAH mobile power output when opening the unit. Note that this mAH than nominal mAH small output mAH * Output voltage 5V / battery mAH * Battery voltage 3.7V = mobile power efficiency
 
Data cleared:
    Press and hold the button until after (the first of several sets of data) into the next set and release the button to automatically skip to the next set of data from scratch.

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