Subnautica 2 Tools and Batteries: How to Recharge Them

In Subnautica 2, tools all need batteries to function. Let's take a look right away at how to recharge them.

Charging Tools in Subnautica 2

To be able to recharge your tools, you need to use a Battery charged to the max. Go to your inventory and select the tool in the shortcut menu, then press "R" to open the recharging menu. In the pop-up menu, select the Battery and press the "Charge" key shown on screen to swap the empty battery for the charged one. The charged battery will then be inserted into the tool, and the empty battery will be in your inventory.

If you're out exploring and an essential tool like the Scanner runs out of power (leaving you stranded...), you can transfer the remaining power from another tool. To do this, select the tool you want to remove the charge from, open the recharging menu with the "R" key, then press the "Discharge" key to drop a Battery from your inventory into it. Then use that Battery to recharge your dead tool.

Note

Some vehicles like the Tadpole run on Power Cells rather than Batteries; Power Cells are rechargeable at a Power Cell Charger.

Recharging Batteries in Subnautica 2

The Battery Charger is a base module that lets you recharge up to 6 batteries simultaneously using the base's power. To unlock the full Battery Charger blueprint, you need to find and scan at least two Battery Charger fragments. These fragments can be found in the old base located 220m southeast of the Lifepod.

Then build a Battery Charger in your base with the following ingredients:

• 2 x Titanium
• 2 x Quartz
• 1 x Copper Wire

Once you've installed the Battery Charger in your base, simply drop your depleted Batteries into it, and they'll start recharging automatically as long as the charger has power. Batteries recharge very quickly, going from 0 to 100% in under a minute.

Each battery charging in the charger draws power from the base's supply, at a rate of 1 power per second. Charging 6 batteries at once in the charger therefore requires 6 power per second, while charging 1 battery only consumes 1 power per second.