Bike lights (Teddington TW11)

I found these in the cupboard under the stairs. They all need batteries (none are USB) and I'm not sure how to open some of them so I can't check the state of them inside. I think they ran out of batteries and I forgot I had them and replaced them with USB lights. It is possible that they won't function so pls be aware of this. If you take them and they don't work with new batteries I'm happy to have them back and take them to the dump. They're a bit out dated now but I feel bad throwing them away of they're functional.