Originally Posted by
glennhl
I started in RC in 1982 with a 12i and we would run the 1200 mah nicads for 8 minutes. The trick was to gear it just high enough that for the last lap you were running slower but not dead.
And back to the OP, it looks like the mini B battery is a 2S 650 mah. That will work perfectly fine. The motor runs unloaded, it doesn't pull hardly any amps.
Yup!
I remember those days. gear the motor to dump at 5 minutes. Many will push it to 4.5 minutes, but often end up suffering an early battery dump before the 4 minute race is over. those motors would be smoking hot after each run. We had to come up with all kinds of heatsink designs to cool them off.
Ah... the good ole days.