With the reloader B it is better to use the 4 battery option, especially during the colder winter months as the circuit board sensor can be affected by the increased audio/vibration given off by the 6 battery pack option, this causes electro static noise on the board and effects the sensor activating the cone.
I know it sounds mental and I didn't beleive it either, but when I first got the loader I had lots and lots of problems with it not picking up the signiture of my Ion. I was advised to switch to the 4 battery pack option, and when i did everything solved itself. Absolutely f*****g marvelous!!
Highly recomended.
jim x