Proper warnings

So I had a weird thing come to mind. I bought a little fan that attaches to a stroller or whatever through Amazon. (I love in South Florida, so fans for the baby is a necessity). Got the fan, works great. BUT the battery that came with it is the same I use for my vape. Rechargable and everything.

This is where I get worried. Vape batteries are not completely enclosed. Meaning the positive side is exposed. This is one of the main reasons you hear about Vapes exploding. People carrying the charged batteries in their pockets freely and not in a battery case. If something gets in, it can cause a reaction that results in it essentially exploding. Here's a pic to see what I'm talking about.

So now I'm a little concerned. I know a lot of people purchase this fan (I know because I asked my one of my mom's groups what to get and almost everyone recommended this particular fan). But not everyone Vapes (obvi) and are most likely unaware of this danger. Looked online and I see no warning about these batteries. It would be horrible for it to go off on or around the baby.

So showed this company have a big warning? Possibly sell another battery? Explain proper use/care of this battery to avoid am explosion? Or should they just keep doing what they're doing and go about their day?

What would you do if you found this out later on etc.?