This is probably the third time I've needed to charge my phone since getting gdr2. The first two times were fine in regards to the led light. Now, as I type this, my phone is charging at 25% battery and the led light is alternating red and green after about 4 seconds. I figured this was slowing down my phone's charging a lot, because after two hours my phone only went up 22% as opposed to before when it would be at 100% after two hours.