Does the A837 charge when it is plugged into a USB port from a computer? That is, does it draw power from the USB cable? Or does the phone have to be charged with â€œspecialâ€ chargers that plug into the USB port on the phone? I am looking to get one of these â€œruggedâ€ phones for my girlfriend, she is VERY hard on regular flip phones. Two years usage and the case is cracked and the hinge is falling apart. I just want to know if any olâ€™ USB outlet on a computer will charge this phone. We have lots of USB ports around, all over, that could be used to charge a phone.