If your iPhone battery is showing signs of wear and tear, it may be time to replace it. Here are four ways to tell if your battery is fried:

  1. If your iPhone won’t turn on at all, the battery may be fried.
  2. If your iPhone won’t turn on even with a full charge, the battery may be fried.
  3. If you’re getting low battery warnings even when you have a full charge, the battery may be fried.
  4. If your iPhone’s screen is completely black or has lines running through it, the battery may be fried. ..