Having a Power Amour has its perks but players will also constantly have to find fusion cores to keep it running. The good news is that there are enough directions on the internet on how to get more fusion cores so that you will never run out of it. Here are a few of the places where you will be able to locate some fusion cores.
Upon finishing the third quest of the game, you will need to head to Nick Valentine’s detective agency located at Diamond City and get the key to Kellogg’s house. Once you are there, go to the desk and crouch down. You will see a red button, press it and you will find four fusion cores.
There are also some at Fort Hagen. The Fusion Cores is located at the western edge of the commonwealth. Go to the generator room and get the fusion core from the engine. There are also some at the Castle but to get to the cores, you will first need to eliminate all the aquatic opponent first.
If you happen to be at the Weston Water Treatment Plant, there are also a few to be found there as well.