... But I've tried most of the supposed fixes. Resetting Network settings, disabling auto-time. Disabling Siri. Disabling Ping. Brightness at 50%, auto brightness off. Bluetooth off. Only 3G on. After 6hrs and 30mins of moderate usage, I am at 14%. Was down to 90% from 100% within the first hour. What I did in those 6 odd hours, - 2 to 3 phone call, not exceeding 1 min each - Light Safari surfing - Moderate Whatsapping - Moderate texts - About 5 pictures - Recored a 20 sec long video. I removed some LaunchDaemons from my 4S using a tool from Cydia. It did a backup before deleting each daemon but I think I only have the draining issue after deleting the daemons though I thought deleting launch daemons was supposed to help with battery. Currently waiting for it to completely die so I can refresh the cycle. I really want to avoid restoring and setting up as a new phone. Any more suggestions I could try? On a 4S with 5.0.1 and Jailbroken.