PLEASE, PLEASE, PLEASE don't ever use Glue Traps! ! ! They are the most cruel and barbaric pest control devices ever invented. They should be outlawed completely and forever.
ROGER AND REXSB, I hope you see this.
The straight dope on the RatZapper: The one I have takes four "AA" batteries. You put in the batteries and carefully place small bits of peanuts and shelled sunflower seeds (or black oil sunflower seeds in shell are great) at the very very back of the trap. You make a TINY trail of little bits of peanuts/seeds leading into the trap, putting this food inside the trap and maybe one or two little bits in front of it.
AVOID getting any kind of food or crumbly bits anywhere near the electrical "plate," which is located on the floor of the trap, inside and near the back. (Food under the plate will trigger a "false signal" that you have zapped a rodent.)
This is really all so easy. You then carefully place the trap next to a wall. Somewhere in the pathway of these rodents. OR you can place it where you last saw a mouse or woodrat feeding----or evidence of feeding (like uneaten, chewed up bits of food). (Atop a kitchen counter, atop a desk is okay.)
You set the trap down gently, so as to avoid getting the food inside under that "hot" plate. You set the swtich on top. It has a red end that displays, which will indicate it is on. BUT, as you switch it on, the red light will blink ONCE.
The next morning, you will see the little red light blinking slowly. This means you have killed your mouse/rat.
I take my furry little dead friend out into the garden and bury him/her as fertilizer for a favorite plant. Add a bit of water, to help decomp.
The bait food will fall out when you tip out the rodent. Replace this food and reset trap same spot as before. Rats and mice tend to follow each other's scent trail to food.
The batteries should last long enough to kill at least five or more rodents, or even last longer, if you are killing them one-two-three and not over an extended period of time.
This is a long-winded set of instructions, but I am telling you exactly how to get the job done. It really is too easy, once you get the hang of it.
DON'T use peanut butter or anything wet as bait. If you want to clean your Zapper, you remove the batteries and wipe out the inside of the Zapper. This is rarely necessary.
CAUTION: If you have a small pet bird or any kind of small pet that can walk into the Zapper, don't let them near this trap---ever. All sorts of animals like peanuts.
Good luck. Let us know how this works for you. Any questions, just put on Edhat and I will try to help. Hope I haven't forgot anything.