These are the three battery chemistries mentioned as safe lithium rechargeables.
I'm wondering if one is more safe than another?
Which can handle over discharging better?
Which is safer for charging?
Which one has more capacity?
Which one is better for the typical high output (100-200 lumen) LED light?
What is the availability of these chemistries in batteries for our lights (RCR123A/18650/etc)?