Revive Freerunner with USB power?

Michael Shiloh michael at
Wed Sep 10 19:52:37 CEST 2008

Joachim Ott wrote:
> 2008/9/10 Michael Shiloh <michael at 
> <mailto:michael at>>
>     Joachim Ott wrote:
>      > Before trying this: would it work to give USB power to the pins where
>      > the battery connects in order to revive the FR or will that cause
>     damage
>      > in the device? The output of the USB is about 4.56 V and (I
>     think) 500 mA.
>     It's fine. Just be very careful. If the polarity is wrong, or you touch
>     the wrong pins, or you give the wrong voltage you will almost certainly
>     damage your FreeRunner. Hook everything up, then get a friend to look
>     and confirm you've done it correctly before you turn on the USB power.
> Don't worry. I will use isolated alligator clips and check before, that 
> + goes to the red clip and - to the black clip and check once more, to 
> which pins red and black must be connected. I will also take pictures of 
> that operation.

Better than alligator clips, I like the mini-hooks from E-Z Hook [1]. 
Been using these since college and I would never use anything else.


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