Wiki says it works like thisTesla Coiled enemies will remain undamaged by Discharge for the first 4 secondsSo enemies don ' t receive damage in first 4 seconds . And it also saysfor the remaining Effect Duration or until the 1000 2000 3000 4000 damage cap is met . And it has an effect duration of 12 seconds . Unmodded Volt has 450 damage and 4000 health so that is 8 , 9 seconds added over 4 seconds . Apparently effect duration starts before 4 second delay ends , so that makes it either 12 seconds or 12 , 9 seconds . So it actually doesn ' t matter how you mod , it actually only works worse against Corpus Robotics since Robotics receive 50 % more damage which makes it 5 , 9 seconds , total of 9 , 9 seconds . So basically , it has a cap of 12 , 9 seconds , no matter how much you increase Power Strength . Because 4000 Power Strength 450 Power Strength is ALWAYS 8 , 9 seconds . Which is a good duration , a Rhino with 150 % duration has less than that . But I agree , DE should make it so that damage cap increases exponentially with Power Strength or something , instead of just multiplying it .