I have a 6 month old iPhone 4s with the most current iOS update. I had it charged at 96% before walking in to work today. 20 minutes later I had the Low Battery message pop up and I was confused. I noticed my batter level was at 19%. I checked my apps and they were all closed out. So I went to text my boyfriend saying my battery will more than likely be dead soon and as I was typing the message, which took less than a minute, I watched the battery level drop to 18%, 17%, 16%, and 15%. It died right after that.
I'm very frustrated, this is the first issue i've had with this phone. Is there anything I can do? I am charging the phone now and I am scared to take it off the charger.
Something may have gone amiss on your iPhone.
To correct this follow these steps:
Had the same prob as everyone else. 18-month-old iPhone 4s had good battery life until IOS 6.1.3 update. Started draining at 7% per hour in standby -- Siri off, location services off, etc. Went to local Apple store last Friday. Phone slicked and IOS restored. Walked around the mall for 45 minutes, and battery drained 7% in that time with one email (text only) and one 1-minute phone call. Returned to Apple store and got another appointment on the spot. Replaced phone since I have Apple Care. What I didn't know is that the replacement phone had IOS 6.1.2 on it (realized that when I got a prompt to install the update). I haven't done the update and battery life is fine! So, if you can get back to IOS 6.1.2......