Thanks for the quick reply,
The High Tech Science thing actually seems to work just like you said, I just used cheat mode which made things a little weird. It just looks weird in the crafting menu with the recipe saying 2.4 Battery Scraps :D
And yes, Hard Crafting has, for example, 4 different smeltable items to make iron plates: Rich Iron Ore, Iron Ore, Crushed Iron and Pulverized Iron. Only Iron Ore produces Iron Plate Scraps right now and seems to override the normal recipe in Hard Crafting.