OriGlam 4Pcs AA to C Size Battery Converter, Battery Adapter Holder Case Battery Boxes

These adapters are new to me. When I saw them I had to try them. They work just like a regular C Battery with the price of an AA. I am so glad that I looked into these. I would recommend them to everyone.

Not much to them. They fit well. Sometimes have to mess with it to make sure it's lining up to close, but not going to be replacing these batteries often, so no big deal.

Ok I guess. I had to use foil in between the batteries to actually make the product work.

It works fine but cheap but good enough for what I need it for.

Didnt work

Perfect solution, illuminates having to buy two different sizes of batteries.

So when you clamp this on to your aa battery the plastic is to bulky at the top and prevents the battery from making contact to the metal in the compartment to make it work.

They work fine, but size tolerance was pretty poor. I have to be careful how they are arranged out the shell prevents contact between the batteries.