The mining laser in all its awesomeness is definitely lacking in hardware. Drills and chainsaws can be put in generators, recharged from batteries,and given bat-packs to use, but the mining laser can't do any of that,and requires its own special machine to power it up. It seems wasteful to make multiple mining lasers to allow for longer trips, so I think that mobile rechargers should be able to accept energy crystals and recharge mining lasers, instantly of course. This would minimize on inventory space for its use and would give it more of an edge on the other tools.
Also, maybe make a crystal pack made with the same recipe as the bat-pack but crystals.