Got home late last night with iPhone battery % in the single digits. Plugged it in my computer to charge via USB and went to bed. In the morning I found my phone turned off. I tried turning it on and nothing.. I plugged it into the wall outlet and the Apple logo came on. It turned on and 30 seconds later turned off. It is continuously restarting while showing either 0% battery or 100%, jumping back and forth randomly each reboot cycle. When the phone turns on, it asks for passcode since I have a lock. It is very sluggish, slow response for everything. I cannot make a call, check voicemail, etc, send text. I've left the phone plugged into the wall charger for 8 or so hours now, and it still shows no charge, and it just keeps restarting. When I pull the charger out of the phone it immediately turns off, indicating no battery charge. When I plug the iPhone into the computer via USB, it does not boot, and iTunes does not recognize it. I've tried hard reset (standby + home button) but nothing. I don't want to put it in recovery mode because I feel like it would not recover from it. Anyways. I ordered a new battery from iFixit a few hours ago, and I guess it will take a week or so to get here. I hope that is the problem. Has anyone experienced this issue before? Was I correct in my diagnosis of the problem with my phone? Could it be something else? I can't imagine it being anything else since my phone was working fine before I went to sleep and was dead afterwards. Only thing I could think of was the battery dying. Help is greatly appreciated it. I want to buy a new iPhone, but I'm holding out 'til the new one in a few months. Thanks!