Lava Cell

Lava Cells can be used as a stackable alternative to Lava Buckets (that can't accidentally be spilled and burn your house) or used in Geothermal Generators to output 20,000 EU at a rate of 20 EU/t. You can also use them together with Water Cells to create Obsidian

Usage
Water Cells and Lava Cells can be crafted together to form Obsidian, without requiring a Diamond Drill to later break the Obsidian.

Lava Cells can also be used in a Geothermal Generator to output 20,000 EU at a rate of 20 EU/t.