In Arknights Endfield, the construction of your factory serves as a foundational aspect of your gaming experience. The advancement through the game heavily depends on efficiently producing materials, necessitating continuous expansion of your factory with new machinery and production lines. However, with such expansion comes the challenge of power management. To ensure smooth operations, you will eventually need to utilize Batteries to support your increasing energy demands.
While expanding your base’s power grid is relatively straightforward, supplying adequate electricity for your AIC is more complex. Simply relying on Originium Ore will not suffice for larger bases in Endfield; instead, the creation of Batteries becomes crucial. Below is a concise guide on establishing a production line for these essential materials, along with a blueprint code for those who prefer a quicker setup.
Creating a Battery Production Line in Endfield

Batteries are intermediate components requiring two distinct processed materials, requiring you to establish three dedicated production lines. The necessary resources include:
- Amethyst Parts: Produced by refining Amethyst Ore into Amethyst Fiber.
- Originium Powder: Derived from processing Originium Ore in a Shredding Unit.
To gain access to the Battery crafting recipe, you must unlock the Power I node within the AIC Index menu. Doing so will also unlock Thermal Banks, capable of consuming Batteries to generate a substantial power supply.
This tutorial focuses specifically on LC Valley Batteries, which utilize Amethyst. Please note that SC Valley Batteries follow the same production framework but employ Ferrium instead.
Establishing the Production Lines

Begin by constructing basic production lines for Originium Powder and Amethyst Parts. Refer to the image above for guidance and connect your machines to your PAC accordingly. It’s critical to ensure that the production chains conclude with a Protocol Stash or feed back into the input ports of your PAC.

Next, set up a Packaging Unit production line as illustrated in the subsequent image. This unit should connect to two Thermal Banks. With sufficient Battery production, your base can gain an additional 440 power units.
Linking the Production Lines

There are two primary approaches to configuring your mini-power plant:
- Produce the required materials independently, followed by creating a dedicated logistics chain for your Battery Packaging Unit.
- Establish a self-contained Battery production line.
The first strategy allows for more flexibility, creating independent production lines for Amethyst Parts and Originium Powder that can supply your entire base. Bear in mind, however, that this may lead to supply and demand challenges if production issues arise during the expansion of your PAC.
The second method (as depicted in the image above) utilizes its dedicated production lines for both Amethyst Parts and Originium Powder. This configuration simplifies your focus to maintaining consistent supplies of these resources to enable efficient Battery production. The downside of this option is that the production line will consume a considerable amount of the power it produces, requiring a significant space allocation. Therefore, prior expansion of your Core AIC area is advisable for effective self-contained battery setups.
Blueprint Code for Self-Contained Battery Production Line in Endfield

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The provided blueprint is designed to be compact and effectively balances the production and consumption of Amethyst Fibers and Originium Powder, enabling the creation of 6 LC Valley Batteries per minute. This exponentially increases your maximum power capacity to 640, with the potential to expand up to 1080 simply by adding two more Thermal Banks—without negatively impacting your overall LC Valley Battery output.
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