The location of the cell is in the same room where you find all your gear. That’s the location after the Proving where Aloy wakes up missing all her gear. Power Cell 2: This can be found in the All-Mother Mountain. The cell is directly on the other side of the doorway. Make your way through that area until you see a formation of stalactites blocking a doorway. You can’t get to it when Aloy is a child. Power Cell 1: The first cell can be found in the original bunker from the beginning of the game where Aloy finds her focus. They are of the old world, and that’s where you can find them. They will show up as green pick-ups on your HUD when you’re near one, and they all can be found in old bunkers and ruins. While you go looking for these power cells, there are a couple things to note. Power Cell Locations in Horizon Zero Dawn The quest says you only need two, but that door leads to a second door that requires an additional three cells. Plus, you’ll need all five to finally get the armor and the game wasn’t nice enough to hide extras. This isn’t an easy hunt because there’s no way to tell where they are on the map. Thus begins the “Ancient Armory” quest and the hunt for power cells. There’s a lock mechanism around the right side, but there are some power cells missing, making it impossible to get access. Swim forward in the water and you’ll find the special armor can be seen through some glass. The Ancient Armory is just past the Metal Flower location. This is the same location as Metal Flower Mark 1 (F). If you went on the hunt for the Metal Flowers, you should already know the location of the Ancient Armory. Jump all the way down the hole, and don’t worry about the fall.

You can gain access to the ruin by climbing some rocks and finding a hole at the top of them. The ruins marker can be found just southwest of a Strider area and northwest of a vendor. There’s a bunker on the eastern side of the map right in the middle of Mother’s Embrace. Horizon Zero Dawn - How to Find the Ancient Armory

Unlock the Ancient Armor in Horizon Zero Dawn.

Power Cell Locations in Horizon Zero Dawn.Horizon Zero Dawn - How to Find the Ancient Armory.

Horizon zero dawn power cell locations