Help choosing 21700 battery for my Sofirn C8F

[Lightbringer]

Apparently <16bux on 11-11. Hang on…

Ah, here ya go…

11.11 deal Sofirn 21700 4000 40A 2x for $10.42 Free Shipping Ali Express

2x for $10.42, 4x for $16.57 with free shipping. My understanding is that this cell, which is the one they ship with the C8F v2 kit, has good capacity & performance, especially for the price. This is from Sofirn’s separate battery store. Available for another 17hrs at the time I’m posting this. I ordered four. I also decided to give Sofirn’s 900mAh 14500 a try.

11.11 deal Sofirn 21700 4000 40A 2x for $10.42 Free Shipping Ali Express

Kewl, actually 15.57, ’cause there’s a coupon for a buk off if spending 12bux. Got applied automagically (thought it may’ve been for lights only, but it got applied to this, too). So, color me happy… even though I have no idea what I’ll use these in, ’cept the new C8Fs.