2 red bike lights (need batteries) (Petworth/ Park View)

These are old bike lights. They both have brackets to attach to round poles/posts.

The left one uses two AA batteries.
The right one uses two AAA batteries.

The left one opens without tools.
The right one needs a Phillips head screwdriver to open it.

Fair Chance Policy: I’ll wait before choosing a recipient to give more people a chance to reply.