[nhoj_yelbom]

i have just installed a single 500mah li-ion 9v battery in my hopper. I read that simon says to auto tune the hopper when using 9v batteries. after the auto tune, it still starts super fast. after i run about 200 reballs the loader automatically slows down, but when it is shut off it goes back to running fast. the hopper is spinning so fast that it just popcorns trying to feed.

[nhoj_yelbom]

bump

[xmc1146]

li-ion and li-poly's uses a lot of current. no matter what, it will go really fast till the voltage is low.

[robotboy]

it's going faster because your running it at a higher voltage. 4 AA's give you 6 volts, now your using 9 volts. Running the motor at a higher voltage makes the motor run faster.Just stick with the 4 AA's, they'll last longer than the 9 volt.