Instructions
Consider the strength and weaknesses of Lt. Surge's team. Lt. Surge uses a level 51 Raichu, two level 47 Electrodes, a level 47 Magneton, and a level 53 Electabuzz. To overcome Lt. Surge's attacks, make sure that the Pokemon in you party are at least a level 53.
Pick ground-type Pokemon for the battle. Ground-type Pokemon are immune to electric attacks. Consider using Mamoswine, Sandshrew, Marowak, Sandslash, Diglett, Dugtrip or Groudon in your battle. You can catch various ground-type Pokemon in the area around Vermillion City.
Start the battle with your strongest ground-type Pokemon using the Earthquake attack.
Continue the battle using Earthquake. Because you are invincible to Lt. Surge's electric attacks, you can easily defeat Lt. Surge's five Pokemon using only one ground Pokemon with the Earthquake attack. If not, rotate through your ground-type Pokemon until you evidentially overwhelm Lt. Surge's team with your ground attacks.