I'm experiencing an interesting problem on my iPhone 4s - since the update to iOS6 battery life has decreased dramatically. Yesterday at 10pm I put my fully charged iPhone 4s into sleep mode and left it untouched over the night. Next morning, still in flight mode, battery was down to 81% (usually I lose something like 3 - 4 % in sleep mode over night), standby time was 10 hours 21 minutes, usage time was also 10 hours 21 minutes. Location services were on - system location services were all disabled, except for "Cell Network Search" and "Traffic".) Has anyone encountered something like this or can offer some suggestions/solutions?