As with anything that runs on rechargeable batteries, an iOS device has so many recharge cycles until its battery needs to be replaced by an Apple Genius or an authorized Apple repair establishment.

Fortunately, Apple has made it easy to check this.  Just do the following steps:

  1. Go to Settings > Battery.
  2. If the Battery needs replacing, you’ll see the graphic that’s included with this article.
  3. That’s it.