This item will not drop until you've done https://everquest.allakhazam.com/db/quest.html?quest=2890 I've done 2 berserker epic 1.5 and 1 cleric epic 1.5 utilizing the GoD zones and this never dropped until after I completed that series of crafting.
It's annoying, but doing the task gets the drops to start happening. Once it drops you can combine it by itself in a toolbox to create Dark Matter, and then combine the Dark Matter with the Battery Casing 1 x5 to create the Mana Battery.
Yesterday I had the Item Collector enabled when I found the Raw Dark Matter on the Mastruq Havocblade. At that time, the mob was absent from the Qinimi section list of this page and Raw Dark Matter was not seen as one of its possible loot of that mob. Therefore I reported it.
Today, both entries have been updated... Item Collector rocks!