Another "Squeaker" Got Electrocuted! These electronic rodent traps work! The Victor brand that we use employs 4-C batteries to electrocute rodents, even the big rats. No mess, no fuss. So far all rodents have been electrocuted perfectly. No blood or squeaking. Any brand of electronic rodent traps should work successfully. We've been using the Victor brand as they're on Amazon with excellent feedback ratings from their customer base.