sorry, EagTac S200C2 and G25C2 are older, non-rechargeable lights.
the EagTac S25L-R and EagTac T25L-R, are both pretty popular rechargeable lights meeting his needs.
(single 18650, 2,000 lumen, strobe, internal charger powered via USB-C port, etc)
Caution: at 2000 lumens, strobe is generally...