Tech path

  1. 01

    Open the Industrial technology tree.

  2. 02

    Unlock Lightning Ward, then Rechargeable Battery if you have not already reached that branch.

  3. 03

    Unlock Basic Power Storage. Its listed cost is 3 Tech Research and 1 Tool Operation.

  4. 04

    Return to the Equipment or Advanced Workbench and open the Industrial equipment filter.

  5. 05

    Craft the two-tile-wide, one-tile-high Small BatterySmall BatteryEarly power storage with a capacity of 300 in the checked guide data..

Recipe and function

  • 2 Copper Ingots
  • 2 Rubber
  • 1 Battery
  • Stores 300 units of excess power

Do not confuse these two items

Battery is a crafting material. Small BatterySmall BatteryEarly power storage with a capacity of 300 in the checked guide data. is a placeable power device. If a main quest asks for Small Batteries, finding ordinary Battery drops is only one ingredient—you still need the Industrial unlock and the workbench recipe.

SOURCES, NOT DECORATION

Sources checked

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These links back up the mechanic, route, or noted uncertainty. Page wording, structure, and diagrams are original work.