Battery Charger (Subnautica)

The Battery Charger is an Appliance that recharges Batteries. It can be built using the Habitat Builder and placed in a Cyclops or a Seabase module. The player must scan two Battery Charger Fragments to acquire its Blueprints. These can be commonly found in Wrecks.

Uses
The Battery Charger can hold (and charge) up to four Batteries at a time. It features a display that shows the charge percentage of each Battery placed in it.

The Battery Charger uses Energy from the Cyclops or Seabase it is attached to recharge the Batteries that are placed in it. It takes 11 minutes and 4-7 seconds to charge a fully depleted Battery or Ion Battery (100 energy or 500 energy respectively); this works out to about 9 or 45 energy (or 9% power) per minute for a single battery. If charging two, three, or four batteries at once, this power requirement is multiplied (so it will try to draw up to 180 energy per minute if charging four Ion Batteries).