Been having the same issue as many others. First Iphone 4S started shutting off @ 30% battery left every time. Plug it in and charge it past 30% and it would come back up. Restoring the phone to factory settings and restoring a backup didnt work. Called Verizon and they replaced it. 2nd phone after a month and a half did the same thing at 25%. Tried restoring. No good. Called Verizon, they had me take out the international sim card. Didnt work. They wanted me to try changing my Apple ID (which didnt make any sense, as the same Apple ID is on my IPODs and Ipad and never had an issue) I have an aftermarket Griffin charger which possibly could be causing the issue, but it gets used with my other apple devices without an issue.
Being that all the posts I saw we the same things happening to the same people, it had to be something we are doing, using etc. Cant be poor recepton or a tower or would be affecting hundreds of people (saw that on one post). The only things that could be causing this is either our equipment or software. I saw one person post that they has Facebook, my verizon, facebook messenger and Pandora on their phone. Same as me, along with 90 something more apps. I deleted each of the apps from my phone (after making sure they were still available online to redownload) and downloaded fresh. Did this with the exception of the apple apps I wish i could delete and 5 apps with data I needed. Took about an hour or so. For the first time since the started having the issue, I can now let my phone battery drop down to completely empty . One of those apps had to be corrupt and each time I restored my phone all it did was reinstall the corrupt version.
Now, I cant promise this will fix it for everyone, but it did fix my phone. Verizon and Apple werent any help at all. All I got was the same answers that I saw everyone else got
Hope this helps
