Shockli 21700 Battery 4550mAh Flat top High Drain 22A 3.7V Li-ion Rechargeable Battery - 2PCS
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Decent batteries (for my flashlight). My measurements: _Capacity: ..by skyrc: 4220 / 4130 mAh. ..by opus: 4470 / 4380 mAh. ..by liitokala: 4500 / 4400 mAh. _Internal resistance: ..by skyrc: 34 / 34 mOhm. ..by opus: 42 / 42 mOhm. ..by opus mini: 31 / 32 mOhm. My ammeter is only up to 10A. and I cannot check the current more than... The voltage is about 3.75 V. at a current of 10A. Enough me... Long session of discharge with 10A.(delta) current, heats the battery up to +61°C. Also not bad it's,,, ok.
I bought 4 of these. was kind of suspicious about quality but now, after several charging no more doubts. All 4 batteries ( as seen on photo ) went above 4550mAh, internal resistance was around 40mΩ and weight 73g. This is the first time i saw such a good packing like this batteries were packed! Each battery was wrapped in nylon plus both batteries in plastic storage case and then the case placed in cardboard box, I'd say way to go Shockli! I am very happy with this purchase and also high recommendation!!
I bought 4 of these 21700 cells and I'm happy to say that I'm more than satisfied with their performance. These cells work extremely well in high drain flashlights (e.g. Lumintop FW21 Pro with 3x XHP50.2) and - as evidenced by the attached pictures, the cells' capacity significantly exceeds the nominal capacity. I highly recommend these 21700 cells.
Good batteries!
Megérkezett ez is,a postán vettem át mert nem voltam otthon,de meg van !!Nagyon jó!Biztonságosan csomagolva!
I am very satisfied with this product, the batteries are taken care of, it is demonstrated by the fact that they arrived with the right storage voltage both accurate to the tenth of Volt. In a nice case and seal one by one.
sloory
Product checks out: - Weight: 72.65g and 72.69g (lygte-info dot dk reference is 72.3g) - Storage charge at arrival: 3.4V - Internal resistance: 150/170 mOhm on the notoriously inaccurate Nitecore UM4 The only problem: Rumor has it the upcoming FW21 Pro draws up to 31A, so I can't re-use these in that flashlight.
Excellent lithiums for their price. The current recoil is greater than samsung's 30Q. Came in with a 3.4B charge. As a gift put flashlight-keychain-keychain, thank you, pleasant))
great battery👍👍 id recommend 👍🙂