I need to test my battery

Hello and welcome to Apple Support Communities farooq103,

We see that you want to have your battery tested. We know how important battery life is and we'd be happy to look into this with you.

We have provided an article to help with iPhone battery and performance.

iPhone Battery and Performance

If you still have questions or if the issue that you're having remains, reply back with the answers to the following questions.

1. Is the battery draining quickly? If so, are you noticing this with a specific app or apps?
2. Which version of software are you using?
3. Once the battery is charged to 100%, how much time passes before you have to share the battery again?

We look forward to hearing back from you.