The Battery Charger in Subnautica 2 is called the Battery Terminal. It is a base module that lets you recharge batteries used in tools like the Scanner, Flashlight, Repair Tool, and Seaglide.
To build the Battery Terminal, you need:
- 2 Titanium
- 2 Quartz
- 1 Copper Wire
Before you can craft it, you must scan 2 Battery Terminal fragments.
Where to Find the Battery Charger Blueprint
You can unlock the Battery Terminal blueprint by scanning two fragments found at the Old Habitat.
This abandoned base is located about 350 to 400 meters north of your starting Lifepod at a depth of roughly 45 to 60 meters.
A good sign that you are in the right area is the presence of large jellyfish floating nearby.
How to Get Inside the Old Habitat
The entrance is not always obvious.
Swim underneath the structure and look for a damaged opening in the floor. Enter through this breach and swim upward into the base.
Inside, you will find air bubbles that can help restore your oxygen.
Battery Terminal Fragment Locations
Both fragments are mounted on the walls inside the habitat.
First Fragment
After entering the base, move into the nearby room and climb the ladder. The first fragment is attached to the wall upstairs.
Second Fragment
Return to the main room and cross the hallway connecting the two sections of the habitat. The second fragment is mounted on the wall at the far end.
Scan both fragments to unlock the Battery Terminal blueprint.
How to Craft the Battery Charger
Once the blueprint is unlocked, enter a powered base and equip your Habitat Builder.
Open the Interior Modules menu and select the Battery Terminal.
Mount it on any interior wall.
Crafting Materials
- 2 Titanium
- 2 Quartz
- 1 Copper Wire
How to Use the Battery Charger
Make sure your base has power from Solar Panels, a Bioreactor, or another energy source.
Remove the empty battery from your tool and place it into one of the Battery Terminal slots.
The charger will automatically begin recharging it.
How Long Does It Take to Charge a Battery?
A fully depleted standard battery usually takes a few minutes to recharge.
The Battery Terminal can charge up to six batteries at the same time.
How the Battery Charger Uses Base Power
The Battery Terminal draws power directly from your base.
It only consumes energy while charging batteries.
Once all batteries are fully charged, it stops using power.
If your base runs out of energy, charging pauses until power is restored.
Is the Battery Charger Worth Getting Early?
Yes. The Battery Charger is one of the most useful early base modules.
It lets you reuse batteries instead of crafting new ones, which saves resources and keeps your tools ready during long exploration trips.
Quick Summary
The Subnautica 2 Battery Charger, also known as the Battery Terminal, is unlocked by scanning two fragments in the Old Habitat north of your Lifepod. It costs 2 Titanium, 2 Quartz, and 1 Copper Wire to build and can recharge up to six batteries at once using your base’s power supply.
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