Kato, if the battery pack is allready fully charged and the charger is properly adjusted to the correct end cell voltage then the pack will draw very little current Nicd cells have a very flat discharge curve untill they are almost totally discharged then they really fall off fast. It is refered to as kneeing over.
The way I charge them is to monitor the pack voltage while loading to the advertised discharge rate and stoping when the series string voltage = 1.1v/c while keeping track of the time it takes to reach this point. That is to say that a 4 cell pack should read 4.4 vdc total string volts under load. Then check the temperture if they are cool then connect them to the charger and charge them for a period of time = to 10x the discharge time. The important thing to monitor is the temperature of the pack. It will get warm but should never be allowed to get hot! If it starts to get too warm discontinue charging and allow it to cool off but do not count this period of cooling time in the recharge period.
I hope this is of some help to you. If you still have questions you can "e mail" me at
[email protected] and I will attempt to assistist.
Please excuse the spelling but I am from TEXAS.
fly the airplane first
73 Lee K5MRC