What’s the difference between the Rat Zapper Classic and Rat Zapper Ultra?
You’ll get longer battery life and about 30 kills per set of regular D-size batteries with the larger-sized Rat Zapper Ultra, which can accommodate bigger rodents as well as small mice. It also comes with a special battery check light. The original Rat Zapper Classic will give you about 10 kills with AA-size Duracell Ultras with M3 Technology or Energizer Titanium E2’s, or about 30 kills with Energizer E2 Lithiums.