This battery can also be found in the Wurkkos TS30S and some bundles of the TS30. While this battery is great for lights like SF47T and SP35, it is not the best option for FET/DD lights like TS30 or TS30S taking advantage of high drain cells like a Samsung 30T/40T/50S or Molicel P42A.
I agree with Jacob that it’s a very decent and cheap alternative to Samsung’s 50E/G. Most of Sofirn‘s 21700 4000mAh batteries seem to be a Lishen LS2170SA. There are some with a recessed ring and some without, so there’s some variation in there.
Yes, that was a mistake to be sold with the TS30/TS30S. Here’s a comparison at 20A against the 40T. No idea whether they’ll change it, but I can imagine it’ll ruin reviews if they use that cell, already complaints surfacing of poor performance.
I will not give up encouraging Sofirn and Wurkkos to reach out for better high drain batteries. My guess is they are somehow bound into a long-term liaison with Lishen and DLG but maybe they are willing to rewrap some Molicels or Samsungs for a moderate price.
Unlikely. They do not have anything better than Lishen LR2170SD or Sanyo/Panasonic NCR21700A. These cells work greatly up to 10A, maybe even 15A. For the TS-series you need something with more juice like Molicel P42A, Samsung 30T/40T/50S if you want to push it to the limit.