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Battery Diagnostics Tester Charger for iPhone 4 to iPhone X

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Product description

  • This clever tool will allow you to test iPhone batteries foWear and usage, aWell as charging/discharging them.
  • Battery Diagnostics Tester Charger for iPhone 4 to iPhone X
  • When a battery is connected, its output voltage will show on the left display, and cycle count on the right display.
  • To charge, press the charge button once, the LED will light up and the right display will now show current going in to the battery (to stop charging press either button).
  • To discharge the battery, press the discharge button once, the LED will light up and the right display will now show current being drawn from the battery (to stop discharging press either button).

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