Q: Is anyone having issues with battery life on Ipohone 6 after IOS 9.3.4 update?

I'm having the same issues and I don't know what else to do.  My phone is almost 2 years old.  I haven't contacted Apple about this problem and I'm sure it's happening to many more.  These phones are way too expensive to replace and we can't let them continue to ignore there is a problem.  I have a friend with an IPhone 5 who also updated her phone and immediately having the same issues but seems to have corrected itself.  I have gone through several charging cable because the first thing that happened was an error message telling me the accessory being used was not a certified apple product.  It's the same cable that came with the phone.  I have bought other apple certified charging cables and had the same error message therefore will not charge the phone.  I narrowed it down to 2 charging cables and these will charge the phone but the battery life is still very short and have to keep on the charger all day at work!