What is the conditioner feature of the charger for?

The conditioner feature if activated will discharge your cells before charging them. Use this feature if:

1) You are charging two cells together in a 2 channel charger such as the NC-10FC and they have different charges remaining or you are unsure of their discharge state. This will allow both cells to recharge equally.

Note: You should not charge two cells together of different types (NiMH with NiCd) or of different rated capacities.

2) You have put your batteries through many charge cycles without having fully discharged them before charging. NiCd and to a lesser extent NiMH batteries tend to store energy in larger crystalline formations near the center of the battery if this area has not been used or exercised for a long period of time. It is the last part of the battery to be discharged during normal use. These larger crystalline formations cause increased resistance to energy flow and tend to rob the battery of capacity. Conditioning your batteries occasionally with the condition feature of your charger will solve this problem by discharging the energy stored in the larger crystalline formations by eliminating the excess resistance and restoring full capacity.