The crafting-Recipe for Charged Wood Mining Cells can occasionally be found in Treasure Chests, most often in Wood Treasure Chests on the surface, then they can be crafted in your Crafting Menu (default key "Q") or at Crafting Tables (that still exist in worlds created before R22 on September 16th 2015). With the Charged Wood Mining Cell you can pull Stone, Mud, Fossils and blocks crafted from stone exactly like with the "common" Wood Mining Cell. Whenever you use the Charged Wood Mining Cell to pull/mine/harvest materials, it will lose durability until it falls apart.