Just letting you guys know that I bought the MintyBoost v3, and that it charges my Motorola Droid X. I bought 3 kits, one for me, and two for my friends who own a Samsung phone, and a BlackBerry phone. I’ll let you guys know if their devices charge, if they’re not already on the compatibility list, once they get around to assembling theirs. I want to thank Adafruit Industries for providing such a great and useful kit with very easy and clear instructions. Keep making more kits so I can keep buying them. Thanks, A Very Satisfied Customer
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If the device is a Samsung smartphone (such as a Galaxy S series device):
Most original GalaxyS devices will pull 475 mA when charging from a USB port. They will treat "iChargers" as a USB port, not a full-current charger.
They will pull 600 mA when D+ and D- are shorted together. This can be bumped up to 800 mA with a custom Linux kernel
Galaxy S II devices vary – the original I9100 defaults to 450/650 and kernels can customize it. The I777 has fixed 400/650 limits. Don’t know about the T-Mobile or Sprint variants.