How to recharge gadgets in Subnautica 2

In Subnautica 2, players can recharge gadget batteries by building a powered base and installing a battery terminal.

To charge a tool, remove its depleted battery, place it in the terminal, then reinsert the charged battery.

The charger must be switched on and the base needs enough power to work.

This matters because essential tools like the scanner, wakemaker, and sonic resonator will run out of charge over time.