I remember back in the days I had a list of different names on NiXX that I would adjust the max voltage and Mv setting to get the best charge and performance from My Nixx batteries..And I know I could adjust both on all on my so called 4 button chargers.. and even the Imax 6b both 50 watt and 80 watt chargers..And its not tricking the charger in any way!