How to Get the Battery Back for Recharge
There is no way to detach empty batteries from tools like headlight or underwater scooter. If I drag and drop a new battery onto the tool with empty battery, it will just replace the battery without returning the empty battery.
If you want to remove battery, drag item with your LM and there will be “Remove Battery” slot in the bottom, drag it there.
Once you removed battery you need to build battery recharging station, connect it with a wire to generator and you will be able to charge it and use again