Factory building is one of the major components of the gameplay loop in Arknights Endfield. Much of your progression relies on having your factory pump out materials, which means you'll need to constantly expand it with new machines and production lines. Of course, this means that power will eventually be an issue, and once it does, you'll need to rely on Batteries to keep everything going smoothly.

Expanding your base's power grid is simple, but feeding your AIC with the electricity it needs to work is a different story. Originium Ore won't be enough for the largest of bases in Endfield, but crafting Batteries will be. Here's a quick overview on how to setup a production line for this material as well as a blueprint code for fans who just want to get things over with.

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How to Make a Battery Production Line in Endfield

Arknights Endfield LC Valley Batteries in Thermal Bank
Arknights Endfield LC Valley Batteries in Thermal Bank
Image via TheBestWarGames; Source: Gryphline

Batteries are intermediate components that require two different kinds of processed materials, which means you'll need to make a total of three production lines. The resources you need are:

  1. Amethyst Parts: Made by refining Amethyst Ore into Amethyst Fiber
  2. Originium Powder: Made by sending Originium Ore into a Shredding Unit

To unlock the crafting recipe for Batteries, you need to unlock the Power I node in the AIC Index menu. This will also unlock Thermal Banks, which can consume Batteries to generate a good chunk of power.

This guide is for LC Valley Batteries, which use Amethyst. SC Valley Batteries use the same production lines, but use Ferrium instead.

Setting Up the Production Lines

Arknights Endfield Battery Materials Production
Arknights Endfield Battery Materials Production
Image via TheBestWarGames; Source: Gryphline

Start by creating simple production lines for Originium Powder and Amethyst Parts. Follow the image above and hook up your machines to your PAC accordingly. Make sure their respective chains end with a Protocal Stash, or loop them back to your PAC's input ports.

Arknights Endfield Battery Production Line Packaging Unit
Arknights Endfield Battery Production Line Packaging Unit
Image via TheBestWarGames; Source: Gryphline

Then, create a simple Packaging Unit production line similar to the one in this next image. It's a Packaging Unit attached to two Thermal Banks. If you produce enough Batteries, your base should have an extra 440 units worth of power.

Connecting the Production Lines

Arknights Endfield Self-Contained Battery Production Line
Arknights Endfield Complete Battery Production Line
Image via TheBestWarGames; Source: Gryphline

There are two ways to go about setting up your mini-power plant:

  1. Produce the necessary materials separately, then create a specific logistics chain for your Battery Packaging Unit.
  2. Create a self-contained Battery production line.

The first option is more flexible as it allows you to create independent Amethyst Parts and Originium Powder production lines that all your other buildings can draw from. However, this could lead some supply/demand issues later on if you fail to address production problems while expanding your PAC.

The second option (as seen in the image above) uses its own Amethyst Parts and Originium Powder production lines. With this setup, all you need to worry about is maintaining a constant supply of Originium and Amethyst so your Packaging Unit can keep pumping out Batteries. The downside is that the production line itself will require a significant portion of the power it produces, and it'll take up a decent amount of space too. You'll want to expand your buildable Core AIC area first if you want to make self-contained battery lines.

Endfield Self-Contained Battery Production Line Blueprint Code

Arknights Endfield Battery Production Line Blueprint
Arknights Endfield Battery Production Line Blueprint
Image via TheBestWarGames; Source: Gryphline
  • EFO01O4a546i90I89oe4

The blueprint above is relatively compact, and it perfectly balances the production and usage of Amethyst Fibers and Originium Powder to create 6 LC Valley Batteries per minute. This will raise your max power capacity to 640, and you can easily expand it to 1080 by adding two more Thermal Banks with no hit to your overall LC Valley Battery production.

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Arknights: Endfield
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Action
RPG
Action RPG
Strategy
Base Building
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Systems
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Developer(s)
Hypergryph
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WHERE TO PLAY

DIGITAL
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Publisher(s)
Hypergryph
Multiplayer
Online Multiplayer
Number of Players
Single-player
Genre(s)
Action, RPG, Action RPG, Strategy, Base Building
Platform(s)
Android, iOS, PC, PlayStation 5