Battery Draining Too Fast All of a Sudden
I have an iPhone 3G and have been using it for a couple years. Yesterday, however I noticed something completely unusual.
My battery was at about 45% around 6pm and by 9 it had died completely, and I had barely used it, other than sending a few texts, and my 3G was off. So then I plugged it in and let it charge fully, and unplugged it before I went to bed. When I woke up in the morning, the battery was at 80% already, and I had not at all used it. Yes, I was connected to wifi but my push notifications were off, and the usage time and standby time were the same.
By 4pm today, my battery had gone down to 20% again. I don't know what's causing this all of a sudden. I hadn't downloaded any new apps, and I don't think any thing else is running in the background.
Does anyone know what could be wrong?
Any help is appreciated!
iPhone 3G, iOS 4