Im thinking of buying a couple of Astrolux BLF A6 XPL 1600LM flashlights. From what I read a Samsung INR18650-30Q Battery is a good fit? If so, how do I charge it ? Could I charge it with a Tecxus TC-6000?
The Xtar VC2 Plus Master and the Nitecore D2 are great starter chargers that does both Li-ion and NiMH. Ultimately depends on how simple or sophisticated you want to go and how many batteries you'd like to be able to charge at once.
And yes, the Samsung 30Q are excellent batteries for this light.