Matty 12" proton packs

I hate having to make a thread about such a simple question. I’ve searched all through the forum and the internet but can’t find my answer. I checked the 1 sheet instructions that come with them as well. I’ve finally obtained the 12" matty collector figures including the double GB2 packs. Their proton packs light up. I’d like to leave them unopened but I’m afraid there are batteries already inside the proton pack. I don’t want them to leak and destroy it over time.

Did they put the batteries inside the pack or not?

Most appreciated!

My GB2 2-pack figures came with the batteries installed.

All figures come with the batteries already installed.

If you’re really concerned about battery acid you will have to remove the figures form the boxes.