Long live the battery
Today, there are many electrical devices that are battery-powered. In some cases, more than one battery, such as the remote control or the radio. The problem usually appears when the spring that supports these batteries begins to wear out and seems to no longer work.
Did you think that in this article we were not going to also have a hack for this problem? Do not throw your batteries away under any circumstances. Just place aluminum foil in the cavities between the battery and the spring. I assure you that the batteries will last much longer.