My 5s is suffering terrible battery all of a sudden, I had it set up from new straight out the box so no dodgy files etc copied from an old backup. It's crashed on numerous occasions, and before I make an appointment with Apple I wanted to know if this is severe, or something the next update will fix or if the phone is duff... I have also restored the phone twice, DFU restored and it makes no difference. Battery life is terrible, random crashes/restarts etc. This is what's listed in the data & diag section on the phone, anyone tell me if this is extreme/ common/ rare/ etc. Thanks.