Briefly reactivate empty batteries
Batteries that have already given up their mind can revive at short notice, if you turn them in the unit, such as garage door opener, remote control, etc. a few times back and forth. Most of the time, this energy is enough to push the trigger again.
Grandma_Duck: It actually works. Often the batteries are just a little slipped out of contact with each other. By rubbing the contacts also possible oxidations are solved. And finally, even the body heat of the battery can help to get back on track, but only for a short time, it really is already in its last legs.Thanks for the tip, he reminded me to buy new replacement batteries for my eight remote controls.
On this occasion: For somewhat stronger consumers, such as mp3 player I recommend rechargeable batteries, it pays off.
