My thoughts exactly when I bought several of these and anything else that comes with batteries already installed. I have left all the new ones I have in their package but I have duplicates of those and more that aren't in their packaging to play with. I really don't understand why manufacturers of anything, place the batteries in the compartment while packaging. If they want to include batteries its much better for them to be separate, wrapped in plastic. If they aren't going to do this then I would prefer them not even including them
maybe see if theres a way you can release the glue without ripping, like steaming it open. then you at least get to keep the nice cardbacks. fingers crossed they arent corroded!!
You'll probably find the batteries will have a plastic spacer to stop them working until its removed. As such the odds are the batteries will be ok unless subjected to damp as they are unlikely to corrode unless they have discharged...
Happily collecting things all my life...
My thoughy exactly since the retailers dont know how long they have to keep the inventory. Since there is no hole for "try me" button on the car. I am pretty sure there is something protecting thr battery.
Uf i remember correctly theae motorize cars uses special batteries.
I would slice the bubble with a craft knife then reseal it again with sticky tape, it is justifiable to save them from damage.