Powercells don't have a limit, they can go infinite positive or infinite negative... So, yeah... bug-report.

I think this might have been related to the weird chunk/nbt issues we saw back then. McJty was notified of this happening and it's been months since I've heard of this so closing issue. Make new ticket if new issues still exist in pack ver 5.0+

Its in the 3.2a version (same as the server). Im playing in the server(my base is at -250,280) . The input cell is connected to a powercube and a hardned leadstone fluxduct, and the output cells are scattered all over my base.

Forge ver:14.22.0.2474

For me in singleplayer the Powercell works normal

It seems to be hit and miss. It doesn't seem to happen when i am on, if i pick up all the cells before i log off.

https://imgur.com/a/U6e9E in 3.3 still doing it