When GP3300's were the main cell, really strong packs were in the 1.19 range, while good packs were in the 1.18's. Modified racing packs were higher runtime packs, but with 1.17 voltages. Now, we are spoiled, and get insane runtime with 1.205ish voltage. That seems to be the typical number. I haven't really seen anything above it, but not much below it, either.