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Recharge batteries and Power Cells without rebuilding your tools

Quick answer

Use a Battery Terminal for handheld batteries and a Power Cell Terminal for vehicle cells. Swap charged spares in the field, then recharge the depleted ones at a powered base. A Tadpole can also recharge while docked.

How this guide was checked

Coverage: Early Access 1.2 · Buddy System Hotfix 2 (October 6) · official sources checked October 23, 2026 UTC · older routes retain their source/build limits. Research checked 11 Oct 2026. Updated 12 Oct 2026

This guide uses the linked sources and any attributed demonstrations. Platform differences and limitations are noted with the advice they affect.

See the 9 sources
9 sources
Creator clipChecked on screen · 25 Oct 20266 steps1 moment · 0:46
  1. 0:40–1:26Swimming into the old habitat and scanning a Battery Terminal fragmentUnlock the Battery Terminal at Old Habitat · Quick Tips

See it first · Unlock the Battery Terminal at Old Habitat ↓

Older footage · checked Oct 25, 2026 · before Subnautica 2 Early Access 1.2 (Buddy System, October 2026)

0:40–1:26 · 46 sSwimming into the old habitat and scanning a Battery Terminal fragment

Check the guide’s version notes before following older footage.

Quick TipsFull video ↗
Credits

“How To Get Battery Charger Blueprint in Subnautica 2” by Quick Tips · May 14, 2026 · Early Access launch week (uploaded May 14, 2026); predates later Early Access updates

Independent creator · no partnership implied

Creator? Ask us to remove this

Before you start

  • Scanner, Habitat Builder and a base with power to spare.
  • Keep at least one charged spare outside the charger before leaving.
1

Swap a battery during a dive

  1. Equip the depleted tool. Use the battery reload action: R on default PC controls or D-pad Up on controller; check your bindings if remapped.
  2. Choose a charged battery from your inventory. The unload action lets you borrow one from a less urgent tool.
  3. Keep the depleted battery for charging. Confirm the tool’s charge bar before continuing.
Sources for this section
2

Unlock the Battery Terminal at Old Habitat

  1. Scan two Battery Terminals in Old Habitat, north of the Lifepod.

    Older footage · checked Oct 25, 2026 · before Subnautica 2 Early Access 1.2 (Buddy System, October 2026)

    0:40–1:26 · 46 sSwimming into the old habitat and scanning a Battery Terminal fragment

    On screen: The diver reaches the sunken habitat about 36 m down, enters through a hatch, and scans a wall-mounted unit labelled Battery Terminal in a pipe-lined corridor before moving on through the tunnel.

    Check the guide’s version notes before following older footage.

    Quick TipsFull video ↗
    Credits

    “How To Get Battery Charger Blueprint in Subnautica 2” by Quick Tips · May 14, 2026 · Early Access launch week (uploaded May 14, 2026); predates later Early Access updates

    Independent creator · no partnership implied

    Creator? Ask us to remove this

    0:40–1:26Swimming into the old habitat and scanning a Battery Terminal fragment
  2. Look beside the long corridor linking the habitat sections, then on the floor associated with Quaker’s black-box signal.
  3. Build the terminal on an interior wall and place depleted batteries in its six slots.
Sources for this section
3

Find Power Cell Terminal scans

  1. Search the platform and crate area roughly 260 m east-northeast of the Lifepod, about 60 m deep under a rocky overhang. A Power Cell Terminal scan is reported near the Tadpole and turbine fragments.
  2. At the Tadpole Pens, inspect the left wall in the backroom for another Power Cell Terminal fragment. Follow the Pens access guide if the room is locked.
  3. Scan distinct fragments until the blueprint confirms it is complete. Meanwhile, use a powered Tadpole Dock and spare cells.
Sources for this section
4

Build the right charger

Destructoid and Game Checklists both list the Power Cell as 2 Basic Batteries, 1 Strong Acid and 1 Salt, and GameWith’s June recipe page agrees. GameWith’s older May terminal guide says 2 Salt, so carry a spare if you are crafting far from base.

Facility or itemIngredientsStation
Battery Terminal2 Titanium · 2 Quartz · 1 Copper WireHabitat Builder
Power Cell Terminal3 Titanium · 3 Copper · 1 Wiring KitHabitat Builder
Basic Battery2 Copper · 1 Acidic Raion PouchFabricator
Power Cell2 Basic Batteries · 1 Strong Acid · 1 SaltFabricator
Sources for this section
5

Recharge the Tadpole

  1. Dock at a powered Tadpole Dock, or remove the cell from the socket on top of the vehicle.
  2. Put the depleted cell in a Power Cell Terminal and install a charged spare in the Tadpole.
  3. Confirm charge is increasing before relying on either method. A spare left in a locker at base cannot rescue a powerless vehicle on a distant trip.
Sources for this section
6

If the charge does not increase

Check charger type, enabled state and base power. Published charger-load figures disagree, so use the HUD with the terminal empty, then with charging items inserted. No fixed charge time is guaranteed here.

If scan progress seems missing, check the build before searching for extra fragments: Adaptive Measures fixed Battery Terminal progress being absent after the first scan.

  1. Wait for a visible charge increase at base.
  2. Check power again while other machines are running.
  3. Load the spare cell and battery into your departure inventory.
Sources for this section

You’re ready when…

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Sources · 9Official · Walkthrough · checked 11 Oct 2026 · Research checked 11 Oct 2026
Adaptive Measures update ↗July 8 release date, scan-progress and power-display fixes. Silver updates in Coral Gardens, nearby hint dialogue, misleading Sonic prompts and Silver nook pickup fixes. Storage excluded from nearby crafting and Moonpool size feedback.Official ·
Tadpole upgrades and chassis ↗Independent recipe and function cross-check for depth, efficiency, chassis and charging.Walkthrough ·
Base construction and power facilities ↗Generator and terminal construction recipes; Modification Station cost. Habitat Beacon cost and reported placement atop a base section.Walkthrough ·
Hydroelectric Turbine scans and connections ↗Camp One scan route, placement output and final transmitter attachment.Walkthrough ·
Battery and Power Cell terminals ↗Old Habitat scans, swaps and recipes. Exact charging load and duration withheld pending current-build verification. Power Cell table (updated May 26) lists 2 Salt; Destructoid, Game Checklists and GameWith’s own June recipe page list 1, so the page uses 1 and names this older figure.Walkthrough ·
Battery swaps and Old Habitat terminals ↗Cross-check for swaps, two scans, six slots and recipes. Zero-load claim conflicts with GameWith; not adopted.Walkthrough ·
Tadpole Pens utility scans ↗Backroom Power Cell Terminal scan; supplements the early platform option.Walkthrough ·
Crafting recipes: sustenance, stations and navigation ↗Corroborates selected meal, water, Fiber and First Aid Kit ingredients; not an exhaustive current-build database. Beacon and Habitat Beacon construction costs and Builder categories. Portable Oxygen Generator materials and Habitat Builder Utility category. Plasteel Ingot at Processor and selected Lithium portions for High Capacity Air Tank and Scout Ray. Silver portions for Standard Air Tank, Wakemaker, Wiring Kit, System Chip, Scanner Station and Silver Ingot. Power Cell table lists 1 Salt, matching Game Checklists and GameWith’s June recipe page.Walkthrough ·
Materials and resources checklist ↗Power Cell: 2 Basic Batteries, 1 Strong Acid, 1 Salt. No date or build stated.Walkthrough ·

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