Default Power Armor sets and customized Power Armor sets are arguably the strongest suits that you can acquire in Fallout 4. However, you cannot wear them for indefinite period of time without running out of fusion core.
Fallout 4 Fusion Cores Locations
The cell that drives a Power Armor is called Fusion Core which can be found scattered around the in-game world. This guide provides that locations of all Fusion Cores that you can find in Fallout 4:
Fusion Core Locations
Fusion Core #1
Location: Western Commonwealth, ArcJet Systems
Threat Level: 6-14
You simply need to head over to the area and find a Fusion Core along with many other goodies.
Fusion Core #2
Location: Natick and Glowing Sea, Atlantic Offices
Threat Level: 20+
Head over to the area to a Fusion Core, but beware of the traps and extreme radiation.
Fusion Core #3
Location: Quincy and Southern Commonwealth, Atom Cats Garage
Threat Level: 40+
You’ll find a Fusion Core in this area along with a Power Armor part.
Fusion Core #4
Location: Neighborhood; Charlestown, Back Alley Scaffold Steps
Threat Level: N/A
You need to head to the rooftop area through the fenced area to find a Fusion Core there.
Fusion Core #5
Location: Qunicy and Southern Commonwealth, Big John’s Salvage
Threat Level: 25+
This area contains a Mini Nuke as well a Fusion Core for your Power Armor.
Fusion Core #6
Location: Goodneighbor, Bobbi’s Place
Threat Level: 20+
Head to the area as a part of the Big Dig optional mission and find 3 Fusion Cores while exploring the large tunnel.
Fusion Core #7
Location: Coastal Commonwealth, Boston Airport
Threat Level: 30+
Head to the exterior of the airport and find a Fusion Core in the area, Another Fusion Core can be found inside the flooded parking lot.
Fusion Core #8
Location: Western Commonwealth, Boston Mayoral Shelter
Threat Level: 20+
Head over to the area and you’ll find a Fusion Core lying there.
Fusion Core #9
Location: Neighborhood; Cambridge, Cambridge Polymer Labs
Threat Level: N/A
You need to head over to the area in order to find a Fusion Core along with some ammo and other goodies.
Fusion Core #10
Location: Natick and the Glowing Sea, Cave [Super Duper Mart] Threat Level: 25+
You need to head inside a garage area in order to find a Fusion Core and a Power Armor piece belonging to Raider Power Armor.
Fusion Core #11
Location: Coastal Commonwealth, Coastal Hideout
Threat Level: N/A
You need to open up the cell door and search the toilet area in order to find a Fusion Core inside.
Fusion Core #12
Location: North Central Commonwealth, Covenant
Threat Level: 15-25
Head inside the sewers and you’ll find a Fusion Core in the center of the area.
Fusion Core #13
Location: Neighborhood; North End, Crashed Vertibird [Military Barge] Threat Level: N/A
You need to open up the locked cage in order to find a Fusion Core and a Power Armor piece belonging to T-45 Power Armor.
Fusion Core #14
Location: Natick and the Glowing Sea, Cutler Bend
Threat Level: 30+
You need to search the white boat in the middle of the murk in order to find a Fusion Core.
Fusion Core #15
Location: Neighborhood; Theater District, D.B. Technical High School
Threat Level: 20+
You need to search the location in order to find a Fusion Core in addition to a Mini Nuke and a Fat Man.
Fusion Core #16
Location: Quincy and Southern Commonwealth, Deserted Camp [Elevated Freeway] Threat Level: N/A
You’ll find the Fusion Core near the construction lift by the generator.
Fusion Core #17
Location: Neighborhood; South Boston, Factory [South Boston] Threat Level: N/A
Head to the factory and you’ll find a Fusion Core inside.
Fusion Core #18
Location: Quincy and Southern Commonwealth, Fallon’s Department Store
Threat Level: 30+
Reach the store using the roof entrance and you’ll find the Fusion Core near a generator.
Fusion Core #19
Location: Neighborhood; Financial District, Faneuil Hall
Threat Level: 20+
While making your way towards the roof, you’ll be able to find a Fusion Core along with some super mutants there.
Fusion Core #20
Location: Western Commonwealth, Federal Ration Stockpile
Threat Level: 6-14
Head over to the backside of the bunker in order to find a Fusion Core there.
Fusion Core #21
Location: Western Commonwealth, Fort Hagen
Threat Level: 15-25
You need to head inside the Command Center and search the Machine Room there in order to find a Fusion Core there.
Fusion Core #22
Location: Coastal Commonwealth, Fort Strong
Threat Level: 35+
You need to head to the outside section of the area in order to find a Fusion Core there.
Fusion Core #23
Location: Neighborhood; South Boston, Four Leaf Fishpacking Plant
Threat Level: 30+
This place contains about 3 Fusion Cores hidden inside — make sure to check it completely!
Fusion Core #24
Location: Neighborhood; Cambridge, Greenetech Genetics
Threat Level: 6-14
You’ll find a Fusion Core on the third floor right next to the elevator. In addition to this, there are a couple of Fusion Cores located on the first floor.
Fusion Core #25
Location: Quincy and Southern Commonwealth, Gunners Plaza
Threat Level: 35+
You need to head over to the roof near the elevator leading to the basement of the said plaza in order to find a Fusion Core.
Fusion Core #26
Location: Neighborhood; Cambridge, Kendall Hospital
Threat Level: 6-14
Head inside the hospital in order to find a Fusion Core.
Fusion Core #27
Location: Backbay, Layton Towers
Threat Level: 20+
Head to the first floor in order to find a Fusion Core there.
Fusion Core #28
Location: Lexington and Northwest Commonwealth, Lexington
Threat Level: 6-14
Just before exiting the the Switchborad, make sure to pick up a couple of Fusion Cores lying inside.
Fusion Core #29
Location: Coastal Commonwealth, Longneck Lukowski’s Cannery
Threat Level: 40+
The Fusion Core can be found on the outside of the area.
Fusion Core #30
Location: Northcentral Commonwealth, Malden Center
Threat Level: 20+
You need to head inside the bottom level tunnels and find a Fusion Core lying there.
Fusion Core #31
Location: Neighborhood; Financial District, Mass Fusion Building
Threat Level: 20+
You need to head inside the building and find a Fusion Core inside — the exact location is currently not available.
Fusion Core #32
Location: North Central Commonwealth, Mass Fusion Containment Shed
Threat Level: 25+
You need to head inside the building and find a Fusion Core there.
Fusion Core #33
Location: Western Commonwealth, Mass Pike Interchange
Threat Level: 20+
You need to head inside the Gunner’s Camp and find the Fusion Core near the elevator.
Fusion Core #34
Location: Quincy and Southern Commonwealth, Mass Pike Tunnel West and East
Threat Level: 15-25
You need to head inside the structure and find a Fusion Core as well as a Mini Nuke there.
Fusion Core #35
Location: Boston Common, Massachusetts State House
Threat Level: 20+
There is a Fusion Core on the basement level of the building right next to a terminal.
Fusion Core #36
Location: North Central Commonwealth, Med-Tek Research
Threat Level: 25+
The Fusion Core that you seek is located on the first floor of the area.
Fusion Core #37
Location: Neighborhood; Theater District, Medical Center Metro
Threat Level: 20+
Head to the area and find a Fusion Core on the upper platform level 2.
Fusion Core #38
Location: Lexington and Northwest Commonwealth, Military Armor Transport [Lexington] Threat Level: N/A
Hack the terminal inside the orange carriage to head inside and find a Fusion Core as well a Power Armor piece inside.
Fusion Core #39
Location: Lexington and Northwest Commonwealth, Military Armor Transport [North Wilderness] Threat Level: N/A
Simply hack the terminal and head inside to find a Fusion Core there.
Fusion Core #40
Location: Lexington and Northwest Commonwealth, Museum of Freedom
Threat Level: 1-5
You need to head over to the basement level 1 and find a Fusion Core there.
Fusion Core #41
Location: Lexington and Northwest Commonwealth, Mystic Pines
Threat Level: 6-14
You need to search the basement generator in order to find a Fusion Core there.
Fusion Core #42
Location: North Central Commonwealth, National Guard Training Yard
Threat Level: 25+
You need to search the rusty cargo containers in order to locate a Fusion Core inside.
Fusion Core #43
Location: Quincy and Southern Commonwealth, NH&M Freight Depot
Threat Level: 25+
You’ll find a couple of Fusion Cores located in this area.
Fusion Core #44
Location: Neighborhood; North End, Old North Church
Threat Level: 25+
The Fusion Core that you seek is located on the north end of the exterior side of the area.
Fusion Core #45
Location: Coastal Commonwealth, Prydwen
Threat Level: 30+
The Fusion Core that you’re looking for is located on the second level of the area.
Fusion Core #46
Location: Quincy and Southern Commonwealth, Quincy Police Station
Threat Level: 45+
Simply head over to the area and locate a Fusion Core there.
Fusion Core #47
Location: Quincy and Southern Commonwealth, Quincy Ruins
Threat Level: 45+
You need to search a wooden crate inside the church to locate a Fusion Core there.
Fusion Core #48
Location: North Central Commonwealth, Recon Bunker Theta
Threat Level: 25+
You need to head inside the bunker and find a Fusion Core inside.
Fusion Core #49
Location: Lexington and Northwest Commonwealth, Red Rocket Truck Stop
Threat Level: 1-5
You need to head over to the hill located on the south side of the cave entrance to find a Fusion Core there.
Fusion Core #50
Location: Coastal Commonwealth, Revere Beach Station
Threat Level: 35+
You need to head over to Revere Arcade and find a Fusion Core there.
Fusion Core #51
Location: Natick and Glowing Sea, Roadside Pines Motel
Threat Level: 25+
You need to head over to the backside of the area in order to find a Fusion Core right next to a generator.
Fusion Core #52
Location: Neighborhood; South Boston, Roof Generator [South Boston] Threat Level: N/A
You need to head over to the western alley to find a Fusion Core right next to a generator.
Fusion Core #53
Location: Beacon Hill; Rooftop Generator [Beacon Hill] Threat Level: N/A
The Fusion Core that you require is inside the generator on the rooftop.
Fusion Core #54
Location: Quincy and the Southern Commonwealth, South Boston Military Checkpoint
Threat Level: 30+
You need to head over to the said area and find a Fusion Core there.
Fusion Core #55
Location: Lexington and Northwest Commonwealth, Starlight Drive In
Threat Level: 1-5
You need to check out the rare storage in order to find a Fusion Core there.
Fusion Core #56
Location: Quincy and the Southern Commonwealth, Suffolk County Charter School
Threat Level: 40+
Head over to the said area in order to find a Fusion Core there.
Fusion Core #57
Location: Lexington and Northwest Commonwealth, Super Duper Mart
Threat Level: 1-5
You need to head over to the upper floor and find a Fusion Core lying there.
Fusion Core #58
Location: North Central Commonwealth, Taffington Boat House
Threat Level: 15-25
You need to head over to the Malden Drainage in order to find a Fusion Core there.
Fusion Core #59
Location: Neighborhood; South Boston, The Castle
Threat Level: 35+
Head over to the castle in the South Boston in order to find the Fusion Core.
Fusion Core #60
Location: Neighborhood; Cambridge, The Institute
Threat Level: 6-14
There is a Fusion Core located in the Old Robotics area and another one in the Public Works Maintenance area.
Fusion Core #61
Location: Lexington and Northwest Commonwealth, USAF Satellite Station Olivia
Threat Level: 1-5
You simply need to head inside the said area and find a Fusion Core there.
Fusion Core #62
Location: Quincy and Southern Commonwealth, Wilson Atomatoys Factory
Threat Level: 40+
You need to head over to the said area in order to find a Fusion Core there.
Fusion Core #63
Location: Quincy and Southern Commonwealth, Wreck of the FMS Northern Star
Threat Level: 45+
You will find a Fusion Core right next to a terminal on the outside of the said area.
Fusion Core #64
Location: Boston Harbor [Waterfront], Yangtze
Threat Level: 30+
The Fusion Core that you seek is located on the second floor of the said area.
