Capacitors can come from one of 3 possible sources:
- Random drops from monsters in Tokyo. This is the most common way to find them
- Random drops from Biohazard Containers.
- Mission rewards:
Capacitors can be Quality Level 0 thru 9, as opposed to weapons which are mainly QL 1 thru 10. The higher the Quality Level of the capacitor, the more damage your weapons will convert to AEGIS damage.
However, unlike your primary AEGIS controllers, you cannot upgrade your Capacitors, and must find higher quality ones.
You attach capacitors via your Character Sheet, just as the Controllers are equipped. There are four identical slots for capacitors, and any capacitor can go in any of those four slots. The slots contribute to both active controllers and so the position you equip the capacitor in does not matter. The benefit from capacitors are cumulative and stack with each other.
In order to equip a capacitor, you must have at least one controller equipped with a similar level. The QL of the Capacitor maps to the .x value of the Controller. So, in order to quip a QL2 Capacitor, you must have at least one v1.2 or higher controller equipped. Note that not all controllers need to be v1.2 - only the highest version is taken into consideration. Once you have equipped the Capacitor, it does not matter what the level of your active Controller is - you will still gain the bonus from the Capacitor as long as you keep at least one controller with a high enough level in the rotation.
The amount of damage increase gained by equipping a capacitor is shown below (this is per-capacitor, multiple capacitors would stack bonuses):
QL0 = + 2.0 - 2.4% QL1 = + 2.5 - 2.9% QL2 = + 3.0 - 3.4% QL3 = + 3.5 - 3.9% QL4 = + 4.0 - 4.4% QL5 = + 4.5 - 5.0% QL6 = + 5.1 - 5.6% QL7 = + 5.7 - 6.2% QL8 = + 6.3 - 6.8% QL9 = + 6.9 - 7.5%
With four QL9 capacitors equipped, the bonus would be 27.6 - 30%