That spark

[BrianG]

I'm probably gonna get chastised from CC for saying this, but from what I've seen, it's the arming sequence in the MM/MMM that makes the charging resistor idea bad. When you hook up the pack with the switch on, the MMM immediately begins chirping the motor, which pulls some current. If the switch is off when you hook up the battery through the no-spark resistor, then things are fine.

[lutach]

I like the spark as it tells me the caps are in good shape. Now, a 8S, 10S, 12S and 60V sparks are very nice indeed .