Need some Heat Plasma Batteries to build even more Energy Activators in The First Descendant? You've come to the right place. There's a really easy and quick way to get a bunch of them.

Here's how to farm Heat Plasma Batteries in The First Descendant.

Before you farm Heat Plasma Batteries in The First Descendant, make sure you’ve completed the Main Story Quest and are comfortable enough to perform Infiltration Operations on Hard. Make sure you have decent Modules and a powerful weapon. If you don’t have the best Modules yet, we recommend doing this farming method with Ajax for his shielding abilities. While you can do this alone, it’s also more effective with a friend. If you have all of those, read on.

Start Infiltration Operation Old Mystery in Hagios on Hard. Choose the Private option, even if you have a friend with you, because this farming method requires you to ignore your objective. Also, don't turn on any kill count modifiers, because they just make the mission harder for no good reason.