[iMore Question]

Every iPhone I get seems to eventually always die at 20%- recently my iPhone 6 + died at 20% and I've charged it more than three times today. Is there a certain fix for this issue that I am not aware of?

[Jaguarr40]

The new models 6 on up have the new Low Power Meter you can turn on at 20% at least recommended to give you more juice by shutting down key features not needed,When you charge and it gets to 80% the feature will turn off. You can use Siri to say 'Turn Low Power Off' and even ask Siri to turn on.
This feature works very good and buys a few hours of battery time.

[Just_Me_D]

I can only assume that the power source that is charging the devices are causing the problem. If it's your wall socket, get with your utilities company and have them run tests for you.