2pcs/ lot Shockli 21700 battery 4000mAh Li-ion rechargeable battery 3.7V 21700 lithium battery for 21700 flashlights, torch

26 days to UK. I have 6 of these now, and while I cannot test them, they seem perfectly good. I have Molicell 21700, and there seems no noticeable difference in performance. I bought these for the Evdilo mod (e cigarette) and one thing to note is that these are very slightly larger than Molicell 21700's. And consequently, as the Evdilo is a very compact dual 21700 mod, I cannot actually use them for that, as it is almost impossible to close and open the mod with these installed. However, that is more a failing of the mod, in my view. These are about 1 mm longer than Molicell and maybe 0.5 mm more in diameter. But the Molicell are already tight in that mod. They come in a storage box, wrapped in plastic, and you get spare battery wraps with them. It recommends these for regulated mods only, not mechanical. Recommend seller and product.

26 days to UK. I have 6 of these now, and while I cannot test them, they seem perfectly good. I have Molicell 21700, and there seems no noticeable difference in performance. I bought these for the Evdilo mod (e cigarette) and one thing to note is that these are very slightly larger than Molicell 21700's. And consequently, as the Evdilo is a very compact dual 21700 mod, I cannot actually use them for that, as it is almost impossible to close and open the mod with these installed. However, that is more a failing of the mod, in my view. These are about 1 mm longer than Molicell and maybe 0.5 mm more in diameter. But the Molicell are already tight in that mod. They come in a storage box, wrapped in plastic, and you get spare battery wraps with them. It recommends these for regulated mods only, not mechanical. Recommend seller and product.

These are very good batteries.. Capacity tested them with XStar VC4S and Opus. VC4S underrates capacity by around 200 mAh. As you can see, VC4S still rates these at around 3800 mAh, and Opus at around 4000 mAh, so as described. Resistance is low, on VC4S, 10 milliohm, on Opus 60 mO, but you have to deduct 30 mO from that, so around 30 mOhm. Voltage is 4.17 V (Opus) or 4.2 V (VC4S) fully charged. Only negative, as said, these are slightly larger than other 21700's, including iJoy, Samsung 40T and Molicell P42A. These fit in Blade, Minikin Kodama, HCigar Aurora Squonker and Cold Steel 100 mods. They do not fit in Yihi SX Mini SL Class, in Evdilo, or in SXK Boxer style squonk mod. Basically, they do not work in mods where batteries fit tightly. For mods with enough space, these are excellent. Same probably applies for other uses, such as torches.. so check that there is some space with other batteries. Recommend seller and product.