That’s the SF L2m body I was looking at / thinking it would be. It’s nice! Don’t have it myself but I am a fan of having the option to use 123 or 18650s. Compact when want it and option for longer runtimes when you need that.
Some cheap direct-from-china chargers and li-ions are just dangerous. Like burn your house down, kill your family, just straight up manufactured with zero regard for safety or life. Mtnelectronics.com carries all of the top batteries and safe, good chargers. You could go for the XTAR MC1 Plus Charger if you think charging one cell at a time would be enough for your amount of use. Auto adjust charging current, 0.5A for shorter cells like 16340, 18350, 1A for 18650s.
Or any of the multi slot chargers if you want to do more cells at one time. I’d skip the xtar MC2 though, at 0.5A max it would be a bit slow for 18650s.
I’d recommend any of the protected batteries. Samsung ICR18650-26F Protected 2600mAh for a low cost 18650 or the LG 18650MJ1 Protected 3500mAh for max capacity. XTAR 16340 Protected for the 16340.
The owner of the store has a sales thread here MTN Electronics: LEDs - Batteries - Lights - Chargers - Hosts - Drivers - Components - 1-Stop-US Source He answers any question, will make recommendations and ships really fast. Never seen a single person have a problem.