Toys, remotes, home appliances, and other things that run on batteries always seem to deplete them at the most inconvenient times. It looks like a good idea to stock up on generic type batteries at dollar shops. Actually, it’s not.
Tests have shown that they carry a lot less energy than the well-known brand batteries. You will have to buy more of them and more often, which minimizes the savings. It’s also bad for the environment. Used batteries are also a major source of pollution.