Fusion core (Fallout 4)

The fusion core is a type of ammunition .
==Background==
==Characteristics==
Fusion cores are used to power and activate suits of power armor. Each core provides roughly 20 minutes real time (or approximately 10 hours game time) of power armor use when jogging (default pace). Actions based on Action Points (AP) usage, such as holding breath when using scoped weapons, sprinting, utilizing V.A.T.S., or jet pack modules causes the power to drain much faster, whereas walking consumes less power and remaining stationary drains none. While the Sole Survivor can utilize power armor without a fusion core, they will be unable to move at a pace greater than a slow walk (similar to being overencumbered) and actions requiring AP will be restricted.
Fusion core lifespan is represented as a percentage. Fusion core lifespan can be extended by 10% by collecting the Repair bobblehead, and by up to 100% by investing points in the Nuclear Physicist perk. Instead of increasing the maximum charge percentage, these will slow the rate at which the charge level drains.
The Gatling laser utilizes fusion cores as its ammunition, each core providing 500 shots. Nuclear Physicist can increase the number of shots per core up to 1000, but the magazine capacity will remain at 500. Also combining with the Repair bobblehead, the total amount of shots can be raised to 1100.
Fusion cores can also be ejected from power armor suits if one has the highest level Nuclear Physicist perk and no other explosive devices are currently equipped. Ejected cores land a short distance behind the user where they act as a sort of timed mine with a destructive force similar to that of a Fat Man's projectile. Note that contrary to the perk description, the cores cannot be actually thrown like regular grenades.
Fusion cores glow when they suffer critical damage and will eventually erupt in a small but powerful nuclear detonation. 
The core of a worn suit of power armor may be targeted using V.A.T.S. A successful hit will cause the core to suffer critical damage, causing a small nuclear explosion behind them, forcing the character wearing the power armor to exit it.
In addition to fixed locations below, fusion cores may also spawn in groups of four in certain ammo boxes across the Commonwealth. Cores can also be spawned in other container types by means of an eyebot pod, but only one at a time.
==Weapons using this ammunition==
* Gatling laser
* Final Judgment
* Aeternus
==Locations==
Location 	Amount	Description
Acadia 	2 	On the bottom level of the interior of the observatory in a locked storage room. The storage room can be accessed by picking a Master-locked door or by hacking a Master-locked terminal.
Angry Anaconda 	1 	In the fusion generator located beside the expert locked portable cabin.
ArcJet Systems 	2 	In the room where the Sole Survivor can restore power to the elevators. Another can also be found beneath the bridge south of ArcJet.
Atlantic Offices in the Glowing Sea	1 	Atop the roof.
Beaver Creek Lanes 	1 	In the generator
Boston Airport 	1 	Spawns in the cargo area after Reunions.
Boston mayoral shelter 	1 	In a room off the basketball court with a sign above it that reads "Restricted Area."
Cambridge Polymer Labs 	1 	In the office, accessed by either by picking the Master lock or successfully finishing the laboratory's research.
The Castle tunnels 	3 	One can be received from the generator in the same room as the chemistry station. Two more can then be obtained from Sarge.
Cola-cars arena 	2 	One in a generator can be found by going through the bathroom, in the same room and going through the destroyed wall in the corner.
Concord Civic Access 	1 	In a dark corner opposite the small drug cache that the mirelurk guards.
Coastal hideout 	1 	In a fusion generator
Crashed boat 	1 	Southwest of the Harbor Grand Hotel on the shoreline there will be a crashed ship with containers arranged to the side of the boat with flames trailing behind it. On the bottom floor, there will be a fusion generator with the fusion core.
Erin Combes 	1 	Will give one for finding Ashes in the quest Here Kitty, Kitty as long as no speech checks were used when agreeing to find Ashes.
Factory 	1 	On a generator located in the western corner of the building.
Federal ration stockpile 	2 	One in a generator located behind the bunker to the northwest of the compound. Another is in the underground bunker. Once inside, take the first door on the right, then through two flooded rooms to a Novice-locked door. It is in the generator in the back of the locked room.
Fizztop Grille 	1 	On the outside patio, on the nightstand at the right hand side of the bed.
Fort Hagen Command Center 	1 	In a generator room to the west.
Fort Hagen satellite array 	 	Found from assorted Mechanist robots bodies.
Four Leaf fishpacking plant 	3 	Two inside (one of them behind a mag-lock door) and one on the roof of the building.
Glowing Grove 	1 	On one of the tables.
Goodneighbor 	4 	Two of the cores can be obtained in The Dig during or after The Big Dig in any ending. One can be found in the generator on the left side of the first room one enters into after Sonya blasts the first dirt wall. Another generator holds one behind an expert-locked door when taking the righthand path after the room filled with ghouls and a big machine in the center of the bottom floor. The final two can be found on a shelf in the locked train car that can only be opened by siding with Bobbi No-Nose, as the key to the train car will only spawn on Fahrenheit's corpse.
Greenetech Genetics 	3 	On the top floor, two behind a security door locked at master level, and one behind a door further on locked at advanced level.
Gunners plaza 	1 	In a generator on the center of the roof, behind a door.
Haddock Cove 	1 	To the southwest in the water in a sunken boat, in the hand of a skeleton (see map gallery)
Near Jamaica Plain 	1 	On the floor in a house on the outskirts of Jamaica Plain, on the floor next to a dead feral ghoul.
Institute 	2 	One in the Public works maintenence area in the generator room southeast of the security room, and another in the Old Robotics, in the room below the circular hatch near the door to the BioScience division.
Kendall Hospital 	1 	In the basement.
Longneck Lukowski's Cannery 	1 	In the basement area after the sewer section.
Malden Center 	3 	All near the generator after descending in the elevator. One is one the ground in front of the generator. The other is in the cardboard box on the table to the left.
Malden drainage 	1 	At the end of the canal just north of the Taffington boathouse.
Mass Fusion containment shed 	1 	Behind a mag-locked door (unlocked via terminal right above it).
Massachusetts State House 	1 	
Medford Memorial Hospital 	1 	West on the second floor in a generator room.
Merchants 	1-5 	Any merchant who stocks ammo will most likely carry up to 5 at 100% charge and may carry one or two others at a lesser charge (usually 40%-90%).
Milton parking garage 	4 	A part of one possible reward for completing the trap-ridden maze inside the parking garage.
Mole rat den 	1 	In a room to the right of the center room in the den.
MS Azalea 	1 	In the ship's cabin pilothouse.
Museum of Freedom 	1 	Lowest floor behind a security door (Novice terminal). Sturges asks the player character to retrieve it during When Freedom Calls. Unlike most other fusion cores, this one is obtained at a charge level of 50% instead of the usual 100%.
Mystic Pines 	1 	In the basement. The door to the basement is locked (Advanced) and requires 1 point in the Locksmith perk to pick.
National Park visitor's center 	1 	North of the park on the road, inside a T-51 power armor with a Vim! Refresh paint job, in a truck.
NH&M Freight Depot 	2 	In the depot's strongroom, in a locked train car.
Northwood Ridge Quarry 	1 	In a generator, in a booby-trapped shack to the southwest.
The Nucleus 	2 	On the metal shelves in the first wooden shack after the decontamination arches.
Nuka-Cade 	1 	In the southernmost room, on the fusion generator.
Nuka-Cola bottling plant 	1 	On the eastern part of the roof, inside a small cabin adjacent to the crane which accesses the faction flagpole. It is in a short cabinet between a tool case and a radio.
Nuka-Town market 	2 	Aaron Corbett's counter.
Nuka-World access tunnels 	1 	Just after passing the wooden bridge, inside the Gauntlet maze.
Nuka-World junkyard 	7 	One can be found in a generator near a Port-A-Diner in the warehouse. Another can be found in the warehouse by jumping into a yellow gondola near the entrance from the second floor, but be warned it is hard to fit into the opening. While traveling through the tunnels to reach the Ultimate UFO, one can find another in the mouth of a bear statue after exiting the metro car. The fourth can be found in a metro car to the south of the Ultimate UFO on a shelf. Another can be found in a blue teacup south of the entrance to the Ultimate UFO. The final two can then be obtained from the sentry bot which guards the Ultimate UFO.
Nuka-World transit center 	1 	On top of the yellow garage instrument table at the end of the tracks, near a pile of radioactive barrels.
Old Pond House 	1 	Between the house on Harbor Grand Hotel, in a shack down the road
Poseidon reservoir 	1 	On the main road at a military checkpoint northeast of the reservoir, in a suit of power armor.
The Prydwen's maintenance bay 	2 	Can be stolen off suits on the Prydwen by sneaking behind them.
Quincy church 	1 	In a crate, near the terminal inside the church.
Railroad HQ escape tunnel 	1 	Near the exit behind a security gate, which can be opened from the Expert terminal to the left of the door.
Recon bunker Theta 	2 	They can only be found during The Lost Patrol. One is in a generator while the other is behind the table Paladin Brandis stands behind upon entering.
Revere Beach station 	1 	Obtained for returning an overdue book at the arcade building near the station for fifty tokens.
Roadside Pines Motel 	1 	Behind the motel on the west side of the building.
Robert MacCready 	1 	As an active companion, he will sometimes provide one fusion core when initiating conversation with him.
Robotics disposal ground 	3 	In chest near the robot in the center of the room. Two more can be retrieved from the robot by enabling it and then self-destructing it.
Rock Point camp 	1 	To the northwest, in the hand of a skeleton in a boat.
South Boston military checkpoint 	1 	In a power relay under the elevated freeway just east of the checkpoint.
Starlight Drive In 	1 	In the building behind the screen, behind a locked (Novice) door.
Suffolk County Charter School 	1 	In a generator in the basement.
Super Duper Mart 	1 	In the generator room in the back.
The Switchboard 	2 	Both can only be accessed during or after Tradecraft or by hacking a master-locked terminal. One can be found in a generator in a room on the south side of the big room with many desks and ruined terminals on the first floor. The other can be obtained next to a toolbox behind an advanced-locked door near the elevator that needs to be turned on to function.
USAF Satellite Station Olivia 	1 	In the main center room in with the generator and the catwalk. Generator emits a buzzing sound.
Vault-Tec: Among the Stars 	1 	Second monitoring room accessible from the residential room, south section, next the to Project Lead terminal.
Vim! Pop factory 	1 	In a T-51 power armor suit, west area.
Vitale pumphouse 	1 	In the second room, requires combination "10-4-5-1" to access.
Walden Pond gift shop 	2 	In a suitcase during the mission where one fights a group of raiders to liberate a village. Another one between Walden Pond and ArcJet Systems in an old power station.
Waves Crest Orphanage 	1 	In a bucket, in a boat in the water between the orphanage and Cranberry Island Docks.
Waystation 	1 	When following Dogmeat during the Reunions quest.
Welcome Center 	1 	In a small room to the left of the albino gatorclaw.
Wilson Atomatoys corporate HQ 	1 	In a generator.
Wilson Atomatoys factory 	1 	On the outside in a generator, on the southern side of the factory.
Wreck of the FMS Northern Star 	1 	Inside a generator on the ground level, near the bow of the ship.
Yangtze 	1 	One is in a box underwater on the east side of the lowest level of the engine room, just past a skeleton lying on a barrel. The other is inside an open footlocker in the crew quarters, near the Nuka-Cola Quantum.
* Sentry bots carry two or more fully charged fusion cores that can be recovered after the robot has been destroyed.
* It is possible to pickpocket fusion cores from characters equipped with power armor such as Brotherhood of Steel members and Atom Cats. Successfully pickpocketing it will force its user to exit the power armor.
* Some merchants, such as Trashcan Carla, have fusion cores for sale.
==Location map==
==Notes==
* The item's value is independent of its charge level. The player can drain a fusion core almost completely (even if the charge reads 0/100, which means a charge of less than 1%) and still sell it for the same value as a completely charged core. A completely drained core, however, is removed from the player's inventory and is unable to be sold.
* While in power armor the number of remaining fusion cores is displayed underneath the current fusion core's charge level. If 100 or more fusion cores are available, the counter will top out at 99 as it only has two digits.
* A suit of power armor does not need a fusion core in it for a companion to enter it. If a fusion core happens to be in a companion's power armor, it does not drain from use.
* Fast traveling does not drain energy from fusion cores while wearing power armor.
* Using the jet pack drains the core's power much faster than any other action.
* Leaving a fusion core in a power armor parked in a settlement may result in settlers, companions and even invaders wearing it. While the core will not drain, the power armor may be left in unexpected places. The power armor can be retrieved from settlers and companions by asking them to exit the power armor; it can also be retrieved from settlers by waiting for them to go to bed.
* Fusion cores at different charge levels do not stack together.
* If an NPC is wearing power armor, the fusion core can be targeted in V.A.T.S. Unless the player has the Penetrator perk, the fusion core has a hit chance of 0% when the player is not behind the NPC, otherwise the hit chance is the same as that of the NPC's torso.
==Behind the scenes==
In previous installments of the Fallout franchise, power armor was said to be powered by a TX-28 microfusion pack that can power the suit for over a century.Power armor specsFallout: The Roleplaying Game Rulebook: "The standard armor frame is a West Tek powered exoskeleton. It draws power from a back-mounted TX-28 micro-fusion reactor, which is compatible with standard fusion cores (p.94). An armor frame cannot be modded." It is never explained why a brand-new pack can be exhausted within 24 hours.
==Bugs==
* Sometimes, putting a fusion core into the armor may send both the fusion core or armor straight down, through the floor. Reloading a previous save is the only known fix.
* Completely draining a fusion core while in power armor and having a weapon not be fully loaded at the time may cause the game to show that the player character has no ammo for the said weapon. Solution: Unequip and re-equip the weapon.
* Having multiple fusion cores at the same level the power armor had when the Sole Survivor stepped into it may result in them all draining with the one in the power armor.
==Gallery==
Fusion core mini nuke Acadia.jpg|Acadia 
FO4NW Angry Anaconda 1.png|Angry Anaconda 
Fo4 fusion core ArcJetS.jpg|ArcJet Systems's engine core
FO4 Atlantic Offices 02.png|Atlantic Offices
FO4FH Beaver Creek Lanes basement.png|Beaver Creek Lanes
Fo4 fusion core The Dig1.jpg|The Dig
Fo4 fusion core The Dig2.jpg|The Dig
Fo4 fusion core BAR.jpg|Boston Airport ruins
Fusion core BMS.jpg|Boston mayoral shelter
Fo4 Fusion core CPL.jpg|Cambridge Polymer Labs
Fo4 Fusion core Castle tunnels.jpg|The Castle tunnels
Hideout interior.jpg|Coastal hideout
Fo4 Fusion core CC arena.jpg|Cola-cars arena 
FO4 Fusion Core in Concord Civic Access.png|Concord Civic Access
FO4 Factory South Boston Fusion Core.jpg|Factory
FO4 Federal ration stockpile exterior 1.png|Federal ration stockpile, outside
FO4 Federal ration stockpile interior 2.png|Federal ration stockpile, interior
Fusion core Fizztop Grille.jpg|Fizztop Grille 
Fo4 fusion core FH CC.jpg|Fort Hagen Command Center
Fo4 fusion core FLFP.jpg|Four Leaf fishpacking plant
Fo4 fusion core FLFP outside.jpg|Four Leaf fishpacking plant, outside
Fo4FH fusion core GG.jpg|Glowing Grove 
Fusion_cores_GG_console.jpg|Greenetech Genetics
Fusion_cores_GG_near_microscope.jpg|Greenetech Genetics
Fo4 fusion core GNN plaza.jpg|Gunners plaza
Fusion core southwest of Haddock Cove.jpg|Southwest of Haddock Cove 
Fo4FH fusion core HGH.jpg|Southwest of Harbor Grand Hotel 
Fo4 fusion core Kendall Hospital.jpg|Kendall Hospital
Fo4 fusion core LLC.jpg|Longneck Lukowski's Cannery
Fo4 fusion core Malden Center.jpg|Malden Center
FO4 Malden Drainage fusion core.png|Malden drainage
FO4 Mass Fusion Containment Shed4.png|Mass Fusion containment shed
MassachusettsStateHouse-FusionCore-Fallout4.jpg|Massachusetts State House
MedfordHospital - Fusion Reactor Room.png|Medford Memorial Hospital
Fusion cores MGP.jpg|Milton parking garage
FO4 Mole rat den3.jpg|Mole rat den
Fusion core MS Azalea cabin.jpg|MS Azalea 
FO4 Museum of Freedom generator room.png|Museum of Freedom
FO4 Mystic Pines Fusion Core.jpg|Mystic Pines
T-51 Vim! Refresh paint job NPVC.jpg|National Park visitor's center 
Nuka Cherry NHM FD strongroom.jpg|NH&M Freight Depot's strongroom
Northwood Ridge Quarry note 1.jpg|Northwood Ridge Quarry 
Fo4FH fusion core Nucleus.jpg|The Nucleus 
Fusion core Nuka-Cade.jpg|Nuka-Cade 
NW bottling plant fusion core.jpg|Nuka-Cola bottling plant 
Fusion cores Aaron Corbett.jpg|Nuka-Town market 
Fusion cores NW junkyard gondola.jpg|Nuka-World junkyard
Fusion cores NW junkyard generator.jpg|Nuka-World junkyard
Fusion cores NW junkyard bear.jpg|Nuka-World junkyard
Fusion cores NW junkyard train.jpg|Nuka-World junkyard
Fusion cores NW junkyard ride.jpg|Nuka-World junkyard
NW transit center fusion core.jpg|Nuka-World transit center
Fusion core Old Robotics.jpg|Old Robotics
Fusion core Old Pond House.jpg|Southeast of Old Pond House 
Fo4 fusion core MC PR.jpg|Military checkpoint northeast of Poseidon reservoir
Fusion core PW maintenance area.jpg|Public works maintenence area
Fo4 fusion core Quincy Church.jpg|Quincy church
Fo4 fusion core RR HQ escape tunnel.jpg|Railroad HQ escape tunnel
Recon Bunker Interior.jpg|Recon bunker Theta
Roadside pines3.jpg|Roadside Pines Motel
Fo4 fusion core RDG.jpg|Robotics disposal ground
Fusion core northwest of RPC.jpg|Rock Point camp 
Fo4 fusion core SB military checkpoint.jpg|South Boston military checkpoint
Power armor station SB Mil checkpoint.jpg|South Boston military checkpoint
Fo4 fusion core SL Drive in.jpg|Starlight Drive In
Fo4 fusion core SCC School.jpg|Suffolk County Charter School
FO4 Super Duper Mart (9).jpg|Super Duper Mart
Fo4 fusion core Switchboard.jpg|The Switchboard
Fo4 fusion core Switchboard toolbox.jpg|The Switchboard, near the elevator
Fo4 fusion core USAF SSO.jpg|USAF Satellite Station Olivia
AmongtheStars-StarCore6-NukaWorld.jpg|Vault-Tec: Among the Stars
T-51 Vim! paint job PopFactory.jpg|Vim! Pop factory
The Gainer.jpg|Vitale pumphouse
Fo4 fusion core WP - AS.jpg|Between Walden Pond and ArcJet Systems
Fusion core WCO.jpg|Northeast of Waves Crest Orphanage 
Welcome Center fusion core.jpg|Welcome Center 
FO4 Fusion Core in Wilson Atomatoys Factory.png|Wilson Atomatoys factory
Fo4 fusion core WACHQ.jpg|Wilson Atomatoys corporate HQ
FO4 Wreck of the FMS Northern Star (6).jpg|Wreck of the FMS Northern Star
Fo4 fusion core Yangtze1.jpg|Yangtze
Fo4 fusion core Yangtze2.jpg|Yangtze
==References==
Non-game
Category:Fallout 4 ammunition
de:Fusionskern
es:Núcleo de fusión (Fallout 4)
fr:Réacteur à fusion (Fallout 4)
pl:Rdzeń fuzyjny
pt:Reator de fusão (Fallout 4)
ru:Ядерный блок
uk:Ядерний блок
zh:核融合核心(辐射4)