iPhone 5 battery issue...

[kattjeveln]

My iPhone 5 dies at 8-10% at times and sometimes stays at 1% for a very long time even under heavy usage.

What gives? Sync issues? What should I do? A full recharge cycle?

 

[Damolee]

My iPhone 5 dies at 8-10% at times and sometimes stays at 1% for a very long time even under heavy usage.

What gives? Sync issues? What should I do? A full recharge cycle?

Full cycle recharge I would say. Not sure what else you can do.

 

[aimee.elizabeth]

My iPhone 5 dies at 8-10% at times and sometimes stays at 1% for a very long time even under heavy usage.

What gives? Sync issues? What should I do? A full recharge cycle?

Try the full charge cycle, and if it doesn't work then try resetting all settings, then try restoring phone, then try restoring phone and set up as new, and if none of those work then Apple store