How do I keep the battery healthy

About Batteries in iDevices

Apple - Batteries

Battery University

Apple - Batteries - iPod

Apple - Batteries - iPhone

Apple - Batteries - iPad

How to Calibrate Your Mac, iPhone, or iPad Battery | MacBlend

About Batteries in Modern Apple Laptops

Battery University

Apple - Batteries - Notebooks

Apple - Batteries

Extending the Life of Your Laptop Battery

MacBook and MacBook Pro- Mac reduces processor speed when battery is removed while operating from an A-C adaptor

Apple Portables- Calibrating your computer's battery for best performance

Mac notebooks- Determining battery cycle count

No for all three.

konagal wrote:

I have read all the articles and answers regarding this issue and still cannot find a complet answer. Even read through http://www.apple.com/batteries/maximizing-performance/ I do NOT want to know about turning off apps to "preserve" battery life. I want to know how to charge my battery in order to KEEP it healthy and last as long as possible for the LIFE of the phone/device. For example, do not let the device battery get below 50%, do not keep it on the charger for X amount of time, etc. I would also like answers for my iWatch and my Macbook Pro with Retina Display early 2013. Would much appreciate it. Thank you

The simple answer is don't worry about it. Charge it when you want to, for as long as you want to. The only thing you should not do is let the battery run all the way down, then NOT charge it. If it reaches zero % then charge it soon; don't wait. (Actually, you have about a week, because the way Apple designed it "0%" is not a flat battery. There's still plenty of reserve). At the other end, there is no need to disconnect the power source when the phone reaches 100%, because it is "smart" enough to stop charging. Probably the easiest and best way to manage the battery is to charge it overnight, every night. Then you will have a full charge to start the day.

konagal wrote:

Is it possible to replace the battery in either of the iPhone 6 plus, Macbook Pro Retina early 2013, and iWatch?

Apple can replace them if they need to be replaced; you cannot.

Yes, take it to an Apple Store is the best alternative. But any authorized Apple service should be able to do it.

I believe Kappy meant that YOU cannot replace the battery. Apple can.