I use the standard charger that came with the phone. Two questions: 1. The cable seems to be very, ummm.. wiggly? By that I mean loose when I plug it into my phone. Does that mean my charging port on the phone is messed up? It has to sit in a specific position to charge. 2. Does a 2.4a charger really charge that much faster? Right now it takes about 2+ hours to charge. If I put it into Airplane mode it goes down a bit. I really don't want to buy something that won't be a significant difference. If so, what are some good brands? I only have one device, so a dual port isn't necessary.