Hello all. I apologize if this is stupid. I have an iPhone 4S that I have had little problems with until recently. The battery life suddenly got very, very, terrible. My phone never ever makes it to less than 20%. It always dies before then. Sometimes as high as 45%. Sometimes I can turn it back on, but it will have significantly less battery, and sometimes I can't. THIS is my biggest issue. I want to know how to fix this the most. It's the worst because I never know when my phone will die and it's infuriating. It randomly drops multiple percentages. IE from 90 to 85 percent without going to 89 first, etc. I keep brightness down, mail push rare, other small things to conserve battery, and even in do not disturb I can not touch my phone for an hour and it's down 10+ percent. I unplug it from a full charge and it will go from 100 to 98 or less immediately. Once, it went from 60 to 19% and shut off immediately. For standby and use age time reference- today it went from 98 to 74 in 30 minutes usage and 50 mins standby. I'm very very tired of this! I don't want to purchase a new battery for it because my upgrade is in a reasonable amount of time. What's wrong with my phone and what can I do? This is unbelievably frustrating!