I just had a bad scare with my iphone. I charged it this morning and was using it for about 15 minutes when it shut down on me. I rebooted it and it came up and said battery was less than 10% charged and it would shut down. The battery had a small thin red line. I didn't have my charger so I used my friends charger later that day and it wouldn't charge at all. It would work plugged in, but the battery stayed empty.
I tried charging it again with my cradle when I got home. Nope. Not going to charge. My husband suggested it wasn't the battery but the battery indicator, but I figured it didn't matter because either way it shut down.
I tried using the apple support web page, but it was pretty frustrating. it took me to a web page where I had to pick my problem from a list to continue and "battery won't charge" wasn't on the list. So I picked "adaptor broken". The next dropdown box wanted to know what part i wanted to replace and again no good choices. Every part but the iphone itself was listed.
So i called the main apple support line and waited on hold for about 20 minutes until I got a human. She said it would take a day to send me a box and then about three more days to get me a new iphone. I was bummed because after all it took to get one and get it activated, and synced, i would have to go phoneless for 1/2 a week and then start all over again with a new iphone.
I asked if I could give a credit card and they could ship my new iphone to me rather than wait until i got the mailing box and then sent it back, but she said no. Nicely she even asked her manager but still no. But good news! While talking to her manager she talked to a tech guy and he said to try hard booting it and that if it was the battery indicator, it might clear up the problem.
Here's how you hardboot the iphone: Press and hold the menu button and power button simultaneously until the silver apple appears.
This worked. When it rebooted the battery showed a 3/4 charge and synching in the cradle has caused it to continue recharging.
I am a bit too happy. Can't get attached to a device here :)