1st off : Get some "real" batteries Batteries from companies like : Sony VTC4, 5. LG (pink hb6 for example) and check out a guy named Mooch (previous post of this topic)
2nd : 0.1 is insane, especially when you have no clue what you are doing. I have a Smok cube II and I rock it with a Geekvape Griffin 6ml and a dual kanthal build with flat twisted coils. Its at a 0.22 ohm build. Big clouds and great flavor. currently I have 2 sets of batteries that I swop out ( so 4 batteries married in a couple) 1 set of Sony VTC 5 and a set of LG HB6. I don't have any problems and vaping at a max of 60W
3rd : Check out ohms law, battery safety (mooch guide) and figure out how volts , ampere and watt work.
Besides all that , WELCOME! Glad you ask for safety issues and batteries.
Always do the research before doing stuff. And with batteries don't save on money.
Sony and LG batteries might seem expensive, but really its well worth the money.
Better hold out on money for your mod , liquids, wire, cotton etc. Then try to save money on batteries.