my droid (original by motorola) doesnt charge on the igo charger anymore. it did just fine, and then one night, it seemed sensitive, like if the charger wasnt in perfectly, it would not charge. then the next night i went to charge it, and no matter how much i fiddled with it, it would not charge anymore. then, my dad switched my battery with his (he also has a droid) and his phone charged fine with his charger (the original droid charger that comes with it) and so did mine with his battery, so that means there was nothing wrong with the phone nor battery, but when i got my phone back, it charged on the igo charger perfectly that night. the next night it had trouble charging again, but i was able to get it to charge. the next night it ceaced all charging again, and i still cannot get it to charge. i tried taking out the battery, sd card, everything, what should i do?