Test Report Summary: Lishen is one of the large, established cell manufacturers in China (http://www.lishen.com.cn). This is a decent performing cell, about equal in performance to the Lishen LR2170SA at 5A and 10A. If staying above about 3.2V at 10A this cell is close to the Samsung 50E3 (not 50E!) but at 5A the Molicel M50A beats it by a little. They’re all fairly close though at 5A-10A and you probably won’t see much of a performance difference between them.
The cycle life rating in the datasheet is good but I have not tested it. In addition to the top vent this cell has a bottom vent which, in my opinion, should not be blocked or pressed against hard.
The two cells I tested delivered 4500mAh and 4539mAh. This is a little bit worse than the typical consistency I’ve seen for cells from one of the larger China cell manufacturers.
Two cells were purchased for testing by me.
Ratings graphic: https://imgur.com/a/jorNkY0
Full Test report: Bench Test Results: Lishen LR2170SF - 13.5A 4500mAh 21700…decent performer, has bottom vent | E-Cigarette Forum
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These tests only note my personal ESTIMATED ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, Murata, LG, Panasonic, Molicel, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.
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To see how other cells have tested check out this link: List of Battery Tests | E-Cigarette Forum