Star Wars: A Flicker of Hope
Ion Charger Weapon Upgrade
An ion charger encases a melee weapon in a light ion field that flares to full strength anytime the weapon strikes something. This causes the melee weapon to deal 2d6 ion damage in addition to its normal melee damage. Feats and maneuvers that add to weapon’s damage have no effect on the ion damage dealt by a weapon with an ion charger (though they increase the weapon’s base damage normally).
Source: Scum and Villainy, p. 43.