This Seeking Tech guide will explain how you can get the 7th Power Cell in the Volcanic Crater in Jak and Daxter (2024) on PS4 and PS5.
Use the following video to go along with the text:
This hidden cell is located at the entrance of the Spider Cave when looking at the rail tracks.
To break the metal crate, head down to the cave and then turn left.
Afterwards, use the webs to jump up to the next level, and then jump across the floating platforms.
You should then see a Yellow Eco Vent.
Once you grab the powerup, jump down and then go right to head back to the Volcanic Crater. Quickly jump your way back to the metal crate and then fire at it.
If you are fast enough, you should be able to get the Power Cell to appear after breaking the crate.