I’d recommend this cell. http://www.mtnelectronics.com/index.php?route=product/product&path=59_108&product_id=851

Slightly better turbo output compared to my liitokalas, which were the highest I have seen otherwise. Efest purple are a slight step down from either. Better than the thrunites, but not as good as the liitokalas.

When you double click to turbo, you should see a clear step up.

Also, I measured 3,204 lm at turbo startup and 3,075 lm at 30s with the liitokalas.

checking the shocklii numbers in a sec, i’ll drop them here. edit again…. battery is charging, but I had a 40t hot off the charger and got 3,367 at start and 3,212 at 30s. Used the squiggly band-type adapters and the 21700 fits perfectly. These guys https://www.aliexpress.com/store/product/18650-to-26650-ring/330416_32679888604.html?spm=2114.12010612.8148356.14.24d915d52i7flA