I have found a turbocharger from a motorola device which has 5V, 9V and 12V outputs. I want to use this charger to run raspberry pi 4. I need to know how tutbocharger changes the voltage? I am scared of the fact that it can supply 12 volt too. Which will burn the board.

  • \$\begingroup\$ Where are your links to hardware? \$\endgroup\$ – Tony Stewart Sunnyskyguy EE75 Sep 16 '19 at 0:49
  • \$\begingroup\$ 1) What charger? Be more specific 2) You mention "outputs" which suggests multiple outputs, then just use the 5 V output and not the others. 3) If you actually mean that the single output of the adapter can output 5 V, 9 V or 12 V then it will output 5 V until the adapter is instructed to output more. This can only be done by devices which are designed for that, for example those supporting QuickCharge. As long as the adapter works properly it will only output 5 V and not more so is safe to use with an RPi. But why not simply use a 5 V only adapter? \$\endgroup\$ – Bimpelrekkie Sep 16 '19 at 6:08

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