And how old is your phone? I recently downloaded a free trial of an app on my Mac that told me how much of the original capacity I have left. Turned out I had 74% of the original capacity left. I have a launch day iPhone 5 so the battery is over a year old. I decided to buy a replacement battery on ebay and replace it myself. Worked out great and only cost me $8 compared to Apple's $79. My new battery is at 96% of original capacity, but I think that's normal for a new battery because my mom just got her iPhone 5 replaced a couple of days ago and the battery capacity is at 98%, so I don't think it's ever actually at a full 100%. For those of you who would like to check your percentage, the app is iBackupbot (just get the free trial) and all you need to do is plug your iPhone into your computer and click "More Info". Divide your Full Charge Capacity by your Design Capacity and times that number by 100 and you will have your percentage.