The biggest drawback to power panels is the small wire they run to the battery - it really reduces the starters power. I prefer a seperate starter battery, either a car or lawn tractor battery. That eliminates dragging the starter wire across the prop arc and significantly boosts the umph of the starter. It also makes it impossible to short with alligator clips. I CARRY MINE IN A MARINE BATTERY BOX TO PREVENT ANY ACCIDENTS. Oops- caps lock!