We had the same problem with my husband's Motorola Droid Turbo 1. The power button died, and we didn't let the battery drain for weeks, knowing there would be no way to turn it back on if it powered off. But then he accidentally let the battery drain, the phone powered down, and we had no way to turn it back on. It would charge, but with the broken power button, we couldn't turn it on.
If you put it on a wireless charger (we got one with the phone when we bought it) the wireless charger will turn the phone on. Both our Droid Turbo and the charger came from Verizon. Hope this helps someone else. We had already bought a new phone, and only figured this out when we were trying to get the pictures off the Turbo.
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