Battery Detector Diagnostic Tester for iPhone 4 / 4S / 5 / 5S / SE / 6 / 6 Plus / 6S / 6S Plus / 7 / 7 Plus / 8 / 8 Plus / X, use to check your iPhone battery health, detector battery capacity / voltage / discharging / current tester, professional iphone battery detector tool.
Buckling battery, the battery light on the right will shine, directly display the battery current voltage and circle times, the left is battery voltage while the right is cycle times.
Double click charging button, display the battery capacity, the left is setting capacity while the right is the actual capacity, click any button to return.
Plug in charging cable, press the charging button, if there is no connection to the charging cable, the light will flicker, the voltage will be displayed on the left, the current will be displayed on the right, and the voltage will rise and the current will decrease with time.
Press the discharge button, the light is on, the voltage is shown on the left while the discharge current is shown on the right, and the voltage will decrease as time goes on until the battery protection, then discharge will be completed.
Double click the discharge button, the battery efficiency is shown on the right, and the setting voltage is shown on the left. This function can detect battery life