Use devices with USB without supplying charging

is it possible, say via an app or a terminal command, to tell OS X Mavericks to stop charging connected devices and just let them use for other purposes like sending data.
for example, i use my macbook air for ios development (making my first app) and connect my iphone to the air to load my app to test it. i dont want my phone to derive charging current from the air as i dont want an unnecessary drain of my laptop's battery.
Neerav

I don't think so. Make sure your iPhone is fully charged and the battery drain should be negligible.

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