How To Recharge Fire Extinguisher Subnautica. Four of them recharge the seamoth at a rate of 4% per second at the surface. Suit room in the aurora.
Using the swim charge fins thus reduces the overall need for batteries and power cells. Yea other way to recharge powercells, then charger built in bases or cyclops, is moonpool, or docking inside cyclops for recharge (cant quite remmeber and not 100% sure that cyclops charges them too, i think it does) there is another way to get fully charged battery superfast too, instead of charhing in module inside bases, but i call that a bug even though its not one,,,, When underwater, the fire extinguisher propels the player in the opposite direction of use, and has infinite fuel.
Assuming the heat of the lava some how gets the water hot enough around your base, the temperature it could reach at 1000 meters depth on earth or about 1400 psi, seems to be maybe 650 degrees.
Four of them recharge the seamoth at a rate of 4% per second at the surface. Press r with a battery in your inventory. Using the swim charge fins thus reduces the overall need for batteries and power cells. Set to 0 to disable: