Fatsky, That was actually the point I was trying to make when I stated it takes all that a NiCad pack has to offer just to get the thing off the ground & drag it around the pattern for a couple laps. I usually deadsticked if I tried to get a third lap around, but in all fareness, these were not brand new packs. Maybe if they were I could have gotten the advertised 6 to 8 min. lol