I am getting ready for a backpacking trip and taking my Droid along. As of now, I seem to be out of luck as to find a charger that will properly charge my phone when away from the normal means of charging. Has anyone used any portable batteries with their Droid? Right now, I have an APC Universal Battery 10WH and it doesn't charge my Droid at all. I am looking at the Just Mobile Gum Pro 4400mAh. Any thoughts? Please think small. I have found that the Droids are very picky about where they get their charges from. I have a wall to usb and a car usb converter that doesn't work with mine or 3 other Moto Droids but will work with any other device that will charge via USB (iPod, GPS, other phones, ect) Also, I have seen that the Minty Boost will charge the Droid, but their kits are backordered right now.