The Industrial Electrolyzer's recipe for making beryllium cells is broken as it needs 18 empty cells to run.
Obviously you can't put more than 16 in as that's the maximum stacksize.

Very easy fix in items/DynamicCell.java:

public DynamicCell()
{
    func_77637_a(TechRebornCreativeTab.instance);
    func_77655_b("techreborn.cell");
    setMaxStackSize(**64**);
}

Thanks very much!

I think the easy fix for this is to lower the required cell count.

Semifixed in 1.11.2. Recipe still uses way too many, but cells stack to 64 now.

So There's no fix for those playing with the lastest hermitpack using techreborn 1.10.2-1.4.17.141 ?

They need to update, that version is very old.

I can ask them to update.

That would be neat.

I will ask them when I get a chance.