Don’t. Who wants to keep replacing expensive batteries? Get it hardwired. It’s the only way.

I have seen a really cool light installed that is wireless and rechargeable using a USB plug. It is mounted in a way that you can remove the fixture and take it to an outlet to recharge it. A friend mounted it in an outdoor shed (like a 10' x 10') that had no electricity to it. It is motion activated, or it can be turned on and off. It is very bright and she LOVES it. This is the link to the site: https://www.amazon.com/dp/B07ZGLSVPJ?psc=1&ref=ppx_pop_dt_b_product_details

Hope this helps.