How to check that whether my iphone power adapter is original or not.??

If your iPhone, iPad, or iPod touch won't charge - Apple Support

Which one? 5W / 12W / 29W

A non-original cable can also be a source of difficulty in charging, even with a proper charger.

Urquhart1244 wrote:

A non-original cable can also be a source of difficulty in charging, even with a proper charger.

A damaged Apple OEM cable can too.

How tu check iphone

Original or not