Subnautica 2: how to get the High Capacity Air Tank, find its blueprint and craft it
Credit: Unknown Worlds
Equipment

Subnautica 2: how to get the High Capacity Air Tank, find its blueprint and craft it

Alexandre Alexandre Jollier
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In brief

The high-capacity tank in Subnautica 2 lets you stay underwater for up to 120 seconds instead of 75, doubling your exploration time. Find out where to get its blueprint and the materials needed to craft it at your base.

In Subnautica 2, the standard air tank only lets you stay underwater for 75 seconds. To extend your exploration time, you'll need to get your hands on the High Capacity Air Tank. Let's find out together how to get it.

The importance of the High Capacity Air Tank

The High Capacity Air Tank is an essential piece of equipment for underwater exploration, allowing you to stay submerged for up to 120 seconds. Some resources and points of interest are located close to depths where oxygen time will be a factor you'll need to manage. This new tank will therefore let you reach areas that were previously inaccessible.

Where to find the High Capacity Air Tank blueprints

The developers of Subnautica 2 have placed several locations where the High Capacity Air Tank recipe awaits you:

Location Description Depth Distance from the Lifepod
1 A research center with elements of the main story. 120 meters 1,300 meters to the east
2 An Alterra wreck with direct access to the blueprint. 326 meters 2,170 meters to the east
3 A specific room in the same wreck. 326 meters 326 meters

Crafting the High Capacity Air Tank

To craft the tank, you will need:

  • Standard Air Tank x1
  • Plasteel Ingot x1

Head back to your base to move on to the fabricator step. Use it to combine titanium and lithium to get a Plasteel Ingot. Once it's crafted, use the fabricator again to craft the High Capacity Air Tank.

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Frequently asked questions

How much oxygen time does the high-capacity tank provide?
The high-capacity tank lets you stay underwater for up to 120 seconds, compared to 75 seconds with the standard tank.
Where can you find the high-capacity tank blueprint?
You can find the blueprints in three locations: a research facility at 120 meters depth (1,300 meters east of the Lifepod), and two spots inside an Alterra wreck at 326 meters depth.
What materials are needed to craft the high-capacity tank?
You need a standard air tank and a plasteel ingot. The ingot is made by combining titanium and lithium in a fabricator.
Do you need a base to craft this tank?
Yes, you need to return to your base to use the fabricator to create the plasteel ingot, then craft the high-capacity tank.

Key takeaways

  • The high-capacity tank provides 45 extra seconds of oxygen for exploring the depths.
  • The blueprints can be found in three distinct locations: a research facility and an Alterra wreck in two spots.
  • Crafting it requires a standard tank and a plasteel ingot made from titanium and lithium.
  • This tank is essential for reaching underwater areas that were previously inaccessible.

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